A young man is accidentally sent 30 years into the past in a time-traveling DeLorean invented by his friend, Dr. Emmett Brown, and must make sure his high-school-age parents unite in order to save his own existence.

Dr. Emmett Brown: If my calculations are correct, when this baby hits 88 miles per hour... you're gonna see some serious shit.
[last lines]
Marty McFly: Hey, Doc, we better back up. We don't have enough road to get up to 88.
Dr. Emmett Brown: Roads? Where we're going, we don't need roads.
Marty McFly: Whoa. Wait a minute, Doc. Are you trying to tell me that my mother has got the hots for me?
Dr. Emmett Brown: Precisely.
Marty McFly: Whoa. This is heavy.
Dr. Emmett Brown: There's that word again. "Heavy." Why are things so heavy in the future? Is there a problem with the Earth's gravitational pull?
Marty McFly: Wait a minute. Wait a minute, Doc. Ah... Are you telling me that you built a time machine... out of a DeLorean?
Dr. Emmett Brown: The way I see it, if you're gonna build a time machine into a car, why not do it with some *style?*
[repeated Line]
Dr. Emmett Brown: Great Scott!
Marty McFly: Calvin? Wh... Why do you keep calling me Calvin?
Lorraine Baines: Well, that is your name, isn't it? Calvin Klein? It's written all over your underwear.
Marty McFly: [to Uncle Joey as a baby, playing in his playpen] So you're my Uncle Joey. Better get used to these bars, kid.
[in the past, Marty observes his dad's incompetence]
Marty McFly: Jesus, George, it was a wonder I was even born.
[Dr. Emmett Brown is doubting Marty McFly's story about that he is from the future]
Dr. Emmett Brown: Then tell me, future boy, who's President of the United States in 1985?
Marty McFly: Ronald Reagan.
Dr. Emmett Brown: Ronald Reagan? The actor?
[chuckles in disbelief]
Dr. Emmett Brown: Then who's vice president? Jerry Lewis?
[rushing out and down a hill toward his laboratory]
Dr. Emmett Brown: I suppose Jane Wyman is the First Lady!
Marty McFly: [following Doc] Whoa. Wait, Doc!
Dr. Emmett Brown: And Jack Benny is secretary of the treasury.
Marty McFly: [outside the lab door] Doc, you gotta listen to me.
Dr. Emmett Brown: [opens the door to the lab] I've had enough practical jokes for one evening. Good night, future boy!
[closes the door leaving Marty outside]
Marty McFly: No, wait, Doc. Doc. The-the-the bruise on your head, I know how that happened. You told me the whole story. You were standing on your toilet and you were hanging a clock, and you fell and you hit your head on the sink. And that's when you came up with the idea for the flux capacitor,
Marty McFly: which is what makes time travel possible.
[Doc opens the door and looks at Marty with a stunned look on his face]
[Marty and Doc observe George's incompetence in 1955]
Dr. Emmett Brown: Which one's your pop?
Marty McFly: [points him out] That's him.
[they see him getting kicked around by other school bullies]
George McFly: [has a "kick me" sign on his back] Okay. Okay, you guys. Ah-ha-ha-ha. Very funny. You guys are being real mature.
Dr. Emmett Brown: Maybe you were adopted.
[addressing the shocked expressions at the dance after playing a wild heavy metal guitar solo]
Marty McFly: I guess you guys aren't ready for that yet. But your kids are gonna love it.
[Lorraine's parents are talking about Marty McFly, Lorraine's future son]
Stella Baines: He's a very strange young man.
Sam Baines: He's an idiot. Comes from upbringing. His parents are probably idiots, too. Lorraine, you ever have a kid who acts that way, I'll disown you.
Marvin Berry: [on the phone, as Marty plays "Johnny B. Goode"] Chuck! Chuck, it's Marvin. Your cousin, Marvin Berry. You know that new sound you're looking for? Well, listen to this!
[holds the receiver out]
Marty McFly: [heads for a door then stops] Oh. One other thing. If you guys ever have kids, and one of them, when he's eight years old, accidentally sets fire to the living room rug... go easy on him.
[pacing in front of the clock tower]
Dr. Emmett Brown: [looks at his watch] Damn! Where is that kid?
[looks at a small alarm clock in his other hand]
Dr. Emmett Brown: Damn!
[looks at a second watch on his other wrist]
Dr. Emmett Brown: Damn! Damn!
George McFly: Lou, give me a milk.
[dramatic pause]
George McFly: Chocolate.
[Stella Baines is Marty's future grandmother]
Stella Baines: You know, Marty, you look so familiar to me. Do I know your mother?
Marty McFly: [turning to look at Lorraine, his mother in the future] Yeah, I think maybe you do...
Younger Dr. Emmett Brown: [running out of the room] 1.21 gigawatts! 1.21 gigawatts. Great Scott!
Marty McFly: [following] What-what the hell is a gigawatt?
[Marty places headphones over his father's ears and wakes him up by playing Van Halen music at full blast. George wakes up screaming - Marty pauses the music. George looks up to see Marty, who is unrecognizable because he is wearing a radiation suit]
George McFly: Who are you?
Marty McFly: [after giving him another earful of loud rock music] Silence, Earthling. My name is Darth Vader. I am an extraterrestrial from the planet Vulcan!
[makes Live Long and Prosper sign with his hand]
[repeated line]
Marty McFly: This is heavy.
[Marty wakes up in Lorraine's bed]
Marty McFly: Mom. That you?
Lorraine Baines: There, there, now. Just relax.
[pats a damp cloth on Marty's forehead]
Lorraine Baines: You've been asleep for almost nine hours now.
Marty McFly: I had a horrible nightmare. I dreamed that I went... back in time. It was terrible.
Lorraine Baines: Well, you're safe and sound now, back in good old 1955.
Marty McFly: [opens his eyes wide] 1955?
George McFly: Last night, Darth Vader came down from Planet Vulcan and told me that if I didn't take Lorraine out, that he'd melt my brain.
Marty McFly: [acting cool] Do you mind if we... park... for a while?
Lorraine Baines: That's a great idea. I'd love to park.
Marty McFly: Huh?
Lorraine Baines: Marty, I'm almost 18 years old. It's not like I've never parked before.
Marty McFly: What?
Lorraine Baines: Marty, you seem so nervous. Is something wrong?
Marty McFly: [trying to maintain composure] No. No.
[Lorraine takes a sip from a liquor bottle]
Marty McFly: [grabbing the bottle from Lorraine] Lorraine! Lorraine, what are you doing?
Lorraine Baines: [starting to laugh] I swiped it from the old lady's liquor cabinet.
Marty McFly: Yeah, well, you shouldn't drink.
Lorraine Baines: Why not?
Marty McFly: Because you... You might regret it later in life.
Lorraine Baines: Marty, don't be such a square. Everybody who's anybody drinks.
[Marty takes a sip from Lorraine's bottle then spit-takes as he notices Lorraine lighting a cigarette]
Marty McFly: [nauseatingly] Jeez! You smoke, too?
Lorraine Baines: Marty, you're beginning to sound just like my mother.
Marty McFly: [Doc has just been shot. Marty runs over to him] Doc! Doc!
Marty McFly: [Marty turns Doc's body over to reveal it is apparently bullet-ridden and lifeless. Marty begins to cry] No! No!
Marty McFly: [Doc suddenly blinks and sits up] You're alive.
Marty McFly: [Doc unzips his radiation suit to reveal a bulletproof vest underneath] Bulletproof vest? How did you know? I never got a chance to tell you.
Marty McFly: [Doc smiles and removes a weathered piece of paper from his pocket. Marty unfolds the paper to reveal it is the warning letter he had written in 1955, taped back together] What about all that talk about screwing up future events? The space-time continuum?
Dr. Emmett Brown: Well, I figured, what the hell?
Dr. Emmett Brown: [Deleted Scene, Doc Brown uses a sound fork and hits the time machine with the sound fork and frantically steps back] I knew, I knew it, I knew it.
Marty McFly: Doc, do you have a 75-ohm matching transformer?
Dr. Emmett Brown: What?
Marty McFly: [Realizing where in time he is] Not invented yet. That's right.
Dr. Emmett Brown: [Walks over to his future self's suit case] So, these are my personal belongings, huh?
Marty McFly: Yeah.
Dr. Emmett Brown: [Opens up the suit case and picks up a hair dryer] What's this thing?
Marty McFly: It's a hair dryer.
Dr. Emmett Brown: A hair dryer? Don't they have towels in the future?
Dr. Emmett Brown: [Picks up a pair of underwear] Oh, look at these underpants. They're all made of cotton. I though for sure we'd all be wearing disposable paper garments by 1985.
Dr. Emmett Brown: [Picks up a Playboy Magazine] What's... this?
[Looks at the magazine]
Dr. Emmett Brown: [exclaims] Suddenly, the future's looking a *whole* lot better.
Lou: You gonna order something, kid?
Marty McFly: Ah, yeah. Give me- Give me a Tab.
Lou: Tab? I can't give you a tab unless you order something.
Marty McFly: Right. Give me a Pepsi Free.
Lou: You want a Pepsi, pal, you're gonna pay for it.
Dr. Emmett Brown: Let me show you my plan for sending you home. Please excuse the crudity of this model. I didn't have time to build it to scale or paint it.
[reveals intricate tabletop model of the town square]
Marty McFly: [impressed] It's good.
[1955 Doc is watching a video of 1985 Doc]
Dr. Emmett Brown: What on Earth is this thing I'm wearing?
Marty McFly: Ah, this, this is a radiation suit.
Dr. Emmett Brown: Radiation suit? Of course. 'Cause of all the fallout from the atomic wars.
George McFly: Hey, you! Get your damn hands off her!
Dr. Emmett Brown: [Marty is showing Doc Brown the flux capacitor in the DeLorean time vehicle] It works! It works!
[grabs Marty]
Dr. Emmett Brown: I finally invent something that works!
Marty McFly: [quietly] You bet your ass it works.
[Marty sees the outside of the Hill Valley High School in 1955]
Marty McFly: Whoa. They really cleaned this place up. Looks brand-new.
[Marty and Doc walk toward the building]
Dr. Emmett Brown: Now, remember. According to my theory, you interfered with your parents' first meeting. If they don't meet, they won't fall in love, they won't get married and they won't have kids. That's why your older brother's disappearing from that photograph. Your sister will follow, and unless you repair the damage, you'll be next.
Marty McFly: Sounds pretty heavy.
Dr. Emmett Brown: Weight has nothing to do with it.
[repeated line]
Marty McFly: If you put your mind to it, you can accomplish anything.
[on the phone while all the clocks chime at once]
Dr. Emmett Brown: Are those my clocks I hear?
Marty McFly: Yeah, it's 8:00.
Dr. Emmett Brown: Perfect! My experiment worked! They're all exactly 25 minutes slow!
Marty McFly: Wait a minute. Wait a minute, Doc. Are you telling me that it's 8:25?
Dr. Emmett Brown: Precisely.
Marty McFly: Damn! I'm late for school!
[hangs up, grabs his skateboard and rushes out]
Goldie Wilson: [rushes up to George] Say! Why do you let those boys push you around like that for?
George McFly: Well, they're bigger than me.
Goldie Wilson: Stand tall, boy. Have some respect for yourself. Don't you know, if you let people walk over you now, they'll be walking over you for the rest of your life. Look at me. You think I'm gonna spend the rest of my life in this slop house?
Lou: Watch it, Goldie.
Goldie Wilson: No, sir! I'm gonna make something of myself. I'm going to night school, and one day, I'm gonna be somebody!
Marty McFly: That's right! He's gonna be mayor.
Goldie Wilson: Yeah, I'm...
[smiles, one of his front teeth is gold]
Goldie Wilson: Mayor! Now *that's* a good idea! I could run for mayor.
Lou: A colored mayor. That'll be the day.
Goldie Wilson: You wait and see, Mr. Caruthers. I *will* be mayor! I'll be the most powerful man in Hill Valley, and I'm gonna clean up this town.
Lou: Good. You can start by sweeping the floor.
[hands Goldie a broom]
Goldie Wilson: [stands tall with a hand over his heart] Mayor Goldie Wilson. I like the sound of that.
[collects George's dishes]
Marty McFly: This is heavy.
Dr. Emmett Brown: Weight has nothing to do with it.
[referring to the DeLorean]
Marty McFly: [looks through a camcorder] This is heavy-duty, Doc. This is great. Uh, does it run, like, on regular unleaded gasoline?
Dr. Emmett Brown: Unfortunately, no. It requires something with a little more kick. Plutonium.
Marty McFly: Um, plutonium. Wait a minute. Are...
[lowers the camcorder]
Marty McFly: Are you telling me that this sucker is NUCLEAR?
Dr. Emmett Brown: Hey, hey, hey! Keep rolling. Keep rolling there.
[Marty raises the camcorder]
Dr. Emmett Brown: No, no, no, no, no, this sucker's electrical, but I need a nuclear reaction to generate the 1.21 gigawatts of electricity I need.
Marty McFly: Doc, you don't just walk into a store and-and buy plutonium! Did you rip that off?
Dr. Emmett Brown: Of course. From a group of Libyan nationalists. They wanted me to build them a bomb, so I took their plutonium and, in turn, gave them a shoddy bomb casing full of used pinball machine parts. Come on! Let's get you a radiation suit. We must prepare to reload.
Biff Tannen: Since you're new here, I-I'm gonna cut you a break, today. So, why don't you make like a tree and get outta here?
[Recurring line in all three movies]
Biff Tannen: Hey, McFly. I thought I told you never to come in here.
George McFly: Lorraine. My density has brought me to you.
Lorraine Baines: What?
George McFly: Oh. What I meant to say was...
Lorraine Baines: Wait a minute. Don't I know you from somewhere?
George McFly: Yes. Yes. I'm George. George McFly. I'm your density. I mean, your destiny.
George McFly: I've never picked a fight in my entire life.
Marty McFly: Look, you're not gonna be picking a fight, Dad... Dad-Dad-Daddy-O.
Marty McFly: He laid out Biff in one punch. I didn't know he had it in him. He's never stood up to Biff in his life!
Dr. Emmett Brown: [looks at the picture, realizing the implications of Marty's statement] Ever?
Lorraine Baines: Marty, will we ever see you again?
Marty McFly: I guarantee it.
Marty McFly: Look, Marvin, you gotta play. See, that's where they kiss for the first time on the dance floor. And if there's no music, they can't dance. If they can't dance, they can't kiss. If they can't kiss they can't fall in love, and I'm history.
Dr. Emmett Brown: Marty, I'm sorry, but the only power source capable of generating 1.21 gigawatts of electricity is a bolt of lightning.
Marty McFly: [startled] What did you say?
Dr. Emmett Brown: A bolt of lighting. Unfortunately, you never know when or where it's ever gonna strike.
Marty McFly: We do now.
[hands Doc the "Save the Clock Tower" flyer]
Marty McFly: [whilst with his girlfriend] What happens to us in the future? Do we become assholes or something?
Linda McFly: [having "originally" - before Marty went back in time and altered the past - complained about not being very popular socially] If Paul calls, tell him I'm working late at the boutique tonight.
Dave McFly: Linda, first of all, I'm not your answering service; second of all, somebody named Greg or Craig called you just a little while ago.
Linda McFly: Well, which one was it, Greg or Craig?
Dave McFly: [a little impatiently] I don't know! I can't keep up of all of your boyfriends!
Dr. Emmett Brown: [holding Marty's video camera] No wonder your president has to be an actor. He's gotta look good on television.
Dr. Emmett Brown: [Doc Brown is trying to read Marty's mind with a geodesic helmet and a suction cup] Erm, you want me to make a donation to the Coastguard Youth Auxilliary?
Marty McFly: Doc,
[pulls off suction cup]
Marty McFly: I'm from the future. I came here in a Time Machine that you invented. Now I need your help to get back to the year 1985.
Dr. Emmett Brown: My God. Do you know what this means?
[Significant pause]
Dr. Emmett Brown: It means that this damn thing doesn't work at all!
[Rips the helmet off]
Red the Bum: [Marty has crashed into a theater after getting back to 1985] Crazy drunk driver.
Marty McFly: [watching a Honeymooners episode in 1955] Hey, hey, I've seen this one. I've seen this one. This is a classic. This is, uh, where Ralph dresses up as a man from space.
Milton Baines: What do you mean, you've seen this? It's brand new.
Marty McFly: Yeah, well, I saw it on a
Marty McFly: ... rerun.
Milton Baines: What's a rerun?
Marty McFly: You'll find out.
Skinhead: [throws Marty in the trunk of a car] That's for messing up my hair!
Band Member: What the hell you doing to my car?
3-D: Hey, beat it, spook. This don't concern you.
Marvin Berry: [four additional band members get out of the car] Who you calling "spook," peckerwood?
Skinhead: Hey, hey, listen, guys... Look, I don't wanna mess with no reefer addicts, okay?
Marvin Berry: Get home to your mama, boy.
3-D: Biff, help!
[the band members chase the boys]
Dr. Emmett Brown: Things have certainly changed around *here*. I remember when this was all farmland as far the eye could see. Old man Peabody owned all of this. He had this crazy idea about breeding pine trees.
Dr. Emmett Brown: I'm sure that in 1985, plutonium is available in every corner drugstore, but in 1955, it's a little hard to come by.
[thinking Marty is an alien]
Sherman Peabody: It's already mutated into human form! Shoot it!
Old Man Peabody: [firing shotgun at barn] Take that, you mutated son of a bitch!
George McFly: [deleted scene]
[after looking at his watch George rushes to the phone booth and calls the operator]
George McFly: Operator! Operator, can you give me the time?
[a few students come and block him in the phone booth with a trident]
George McFly: Dixon, I got to get out! Dixon, this isn't funny! What? Dixon!
[the students laugh as they walk away]
George McFly: [Mr. Strickland walks by and sees George inside the phone booth] Mr. Strickland, those no-good guys, they just locked me in.
Mr. Strickland: You see. You see what happens to slackers, McFly?
[walks away]
George McFly: Yes. Yes! Mr. Strickland, you've got to let me out of here!
High-School Band Audition Judge: Okay, that's enough. Thank you, fellas. Hold it. Hold it, fellas. I'm afraid you're just too darn loud. Next, please. Bring up the next group, please.
1955 radio weatherman: [It's Marty's last night in 1955. Doc is setting up the cable that will channel the lightning bolt into the time machine] ... Hill Valley area weather this Saturday night. Mostly clear, with some scattered clouds. Lows tonight in the upper 40s.
Dr. Emmett Brown: Are you sure about this storm?
Marty McFly: Since when can weathermen predict the weather, let alone the future?
Dr. Emmett Brown: You know, Marty, I'm gonna be very sad to see you go. You've really made a difference in my life. You've given me something to shoot for. Just knowing that I'm going to be around to see 1985. That I'm gonna succeed in this!
[gestures at time machine]
Dr. Emmett Brown: That I'm gonna have a chance to travel through time!
[Marty looks solemn, knowing that Doc is destined to be murdered before he gets to use the time machine himself]
Dr. Emmett Brown: It's gonna be really hard waiting 30 years before I can talk to you about everything that's happened in the past few days. I'm really gonna miss you, Marty.
Marty McFly: I'm really gonna miss *you*.
Marty McFly: Doc, about the future...
Dr. Emmett Brown: No! Marty! We've already agreed that having information about the future can be extremely dangerous. Even if your intentions are good, it can backfire drastically!
[Marty nods reluctantly]
Dr. Emmett Brown: Whatever you've got to tell me, I'll find out through the natural course of time.
[seeing a poster for the Enchantment Under the Sea dance]
Dr. Emmett Brown: Look! There's a rhythmic ceremonial ritual coming up.
Marty McFly: Of course! The Enchantment Under the Sea dance! They're supposed to go to this. That's where they kiss for the first time.
Dr. Emmett Brown: All right, kid. You stick to your father like glue and make sure he takes her to that dance.
Lorraine Baines: Anyway, your Grandpa hit him with the car and brought him into the house. He seemed so helpless, like a little lost puppy, and my heart just went out to him.
Linda McFly: Yeah, Mom, we know. You've told us this story a million times. You felt sorry for him, so you decided to go with him to the Fish Under the Sea dance.
Lorraine Baines: No, no. It was the Enchantment Under the Sea dance.
Mr. Strickland: I noticed your band is on the roster for the dance auditions after school today. Why even bother, McFly? You don't have a chance. You're too much like your old man. No McFly ever amounted to anything in the history of Hill Valley!
Marty McFly: Yeah, well, history is gonna change.
Dr. Emmett Brown: You've got to get your father and mother to interact in some sort of social...
Marty McFly: Wh-what? You mean like a date?
Dr. Emmett Brown: Right!
Marty McFly: What kind of date? I don't know. What do kids do in the '50s?
Dr. Emmett Brown: Well, they're your parents. You must know them. What are their common interests? What do they like to do together?
Marty McFly: Nothing.
Marty McFly: Where are my pants?
Lorraine Baines: Over there, on my hope chest.
Biff Tannen: Say hi to your mom for me.
Lorraine Baines: Marty? Why are you so nervous?
Marty McFly: Lorraine. Have you ever been in a situation where you knew you had to act a certain way, but when you got there, you didn't know if you could go through with it?
Lorraine Baines: You mean like how you're supposed to act on a first date?
Marty McFly: [stammering] Sort of.
Lorraine Baines: I think I know exactly what you mean. You know what I do in those situations?
Marty McFly: You do? What?
Lorraine Baines: I don't worry.
[kisses him hard]
Lorraine Baines: [Lorraine stops and pulls back, Marty is freaking out]
Lorraine Baines: This is all wrong. I don't know what it is. But when I kiss you, it's like I'm kissing... my brother. I guess that doesn't make any sense, does it?
Marty McFly: Believe me, it makes perfect sense.
[a switch actives Dr. Brown's television and we see a news report]
TV news anchor: The Senate is expected to vote on this today. In other news, officials at the Pacific Nuclear research facility have denied the rumor that a case of missing plutonium was, in fact, stolen from their vault two weeks ago. A Libyan terrorist group had claimed responsibility for the alleged theft. However, officials now attribute the discrepancy to a simple clerical error. The FBI, which is investigating the matter, had no comment. Twelve wooden crates filled with cocaine washed ashore near Boca Raton, Florida, yesterday.
Marty McFly: That's Strickland. Jesus, didn't that guy ever have hair?
Dr. Emmett Brown: [the DeLorean has just made the first time-jump] Ah! What did I tell you? 88 miles per hour! The temporal displacement occurred exactly 1:20 a.m. and zero seconds!
Marty McFly: Ah, Jesus Christ! Jesus Christ, Doc, you disintegrated Einstein!
Dr. Emmett Brown: Calm down, Marty. I didn't disintegrate anything. The molecular structure of both Einstein and the car are completely intact.
Marty McFly: Then where the hell are they?
Dr. Emmett Brown: The appropriate question is, "*When* the hell are they?" You see, Einstein has just become the world's first time traveler! I sent him into the future. One minute into the future to be exact. And at precisely 1:21 a.m. and zero seconds, we shall catch up with him and the time machine.
Lorraine Baines: I think we need a rematch.
George McFly: Oh, a rematch. Why? Were you cheating?
Lorraine Baines: No. Good morning
George McFly: Hello.
[Marty collapses onto the floor]
Marty McFly: [Marty has just woken up to a new and improved 1985, and sees his brother and sister well-dressed and sitting at the dinner table, eating breakfast]
Marty McFly: Hey. What the hell is this?
Linda McFly: Breakfast.
Marty McFly: [being chased by terrorists] Let's see if you bastards can do 90.
Biff Tannen: Mr. McFly! Mr. McFly, this just arrived. Oh, hi, Marty. I think it's your new book.
Lorraine Baines: Oh, honey! Your first novel.
George McFly: Like I've always told you, you put your mind to it, you can accomplish *anything*.
Biff Tannen: Oh, Marty. Marty, here's your keys. You're all waxed up, ready for tonight.
Marty McFly: Keys?
Biff Tannen: And where's my reports?
George McFly: Well, I haven't finished those up yet, but you know, I... I figured since they weren't due till...
Biff Tannen: Hello? Hello? Anybody home? Huh? Think, McFly. Think! I gotta have time to get them retyped. Do you realize what would happen if I hand in my reports in your handwriting? I'll get fired. You wouldn't want that to happen, would ya? Would ya?
George McFly: Of course not, Biff. Now, I wouldn't want that to happen. Now, look. I'll, uh, finish those reports on up tonight, and I'll run 'em on over first thing tomorrow, all right?
Biff Tannen: Not too early. I sleep in Saturday. Oh, McFly, your shoe's untied.
[jabs his finger up to George's face]
Biff Tannen: Don't be so gullible, McFly. Got the place fixed up nice, though, McFly.
[Biff is waxing George's car, it's a silver BMW]
George McFly: Now, Biff, I want to make sure that we get two coats of wax this time, not just one.
Biff Tannen: I'm just finishing up the second coat now.
George McFly: Now, Biff, don't con me.
Biff Tannen: [stammering] I'm sorry, Mr. McFly. I-I meant I was just starting on the second coat.
George McFly: Biff. What a character. Always trying to get away with something. I've had to stay on top of Biff ever since high school. Although, if it wasn't for him...
Lorraine Baines: We never would have fallen in love.
George McFly: That's right.
Marty McFly: "Too loud." I can't believe it. I'm never gonna get a chance to play in front of anybody.
Jennifer Parker: Marty, one rejection isn't the end of the world.
Marty McFly: Nah, I just don't think I'm cut out for music.
Jennifer Parker: But you're good, Marty. You're really good, and this audition tape of yours is great. You've gotta send it in to the record company. It's like Doc's always saying.
Marty McFly: Yeah, I know. I know. "If you put your mind to it, you can accomplish anything."
[Marty notices two girls walk by and looks at them]
Jennifer Parker: [turns Marty's head back to her] That's good advice, Marty.
Marty McFly: All right, okay, Jennifer. What if I send in the tape in and they don't like it? What if they say I'm no good? What if they say, "Get out of here kid. You've got no future"? I mean, I just don't think I can take that kind of rejection. Jesus, I'm starting to sound like my old man.
Jennifer Parker: Come on. He's not that bad. At least he's letting you borrow the car tomorrow night.
Marty McFly: [sees a tow truck pull up with a 4x4 Toyota on the flat bed] Check out that 4x4. That is hot. Someday, Jennifer. Someday. Wouldn't it be great to take that truck up to the lake? Throw a couple of sleeping bags in the back. Lie out underneath the stars.
Jennifer Parker: [smiling] Stop it.
Marty McFly: What?
Jennifer Parker: Does your mom know? About tomorrow night?
Marty McFly: No, get out of town. My mom thinks I'm going camping with the guys. Look, Jennifer, my mother would freak out if she knew I was going out with you, and I'd get the standard lecture about how she never did that kind of stuff when she was a kid. I mean, look, I think the woman was born a nun.
Jennifer Parker: She's just trying to keep you respectable.
Marty McFly: [puts his arm around her, flirting] Well, she's not doing a very good job.
Jennifer Parker: [both lean in to kiss] Terrible.
Marty McFly: Hey, Dad! George! Hey, you on the bike!
Mr. Strickland: Am I to understand you're still hanging around with Dr. Emmett Brown, McFly?
[clicks with his mouth, gives Jennifer a tardy slip]
Mr. Strickland: Tardy slip for you, Miss Parker.
[gives Marty one, too]
Mr. Strickland: And one for you, McFly. I believe that makes four in a row. Now let me give you a nickel's worth of free advice, young man. This so-called Dr. Brown is dangerous. He's a real nutcase. You hang around with him, you're gonna end up in big trouble.
Marty McFly: [sarcastically] Ooh. Yes, sir.
Mr. Strickland: [pushes Marty a little bit] You got a real attitude problem, McFly. You're a slacker. You remind me of your father when he went here. He was a slacker, too.
Dr. Emmett Brown: Don't worry. As long as you hit that wire with the connecting hook at precisely 88 miles per hour, the instant the lightning strikes the tower... everything will be fine.
Dr. Emmett Brown: [reads the "Save the Clock Tower" flyer and reacts with hope] This is it! This is the answer. It says here that a bolt of lightning is going to strike the clock tower at precisely 10:04 p.m. next Saturday night! If... If we could somehow harness this lightning... channel it into the flux capacitor... it just might work. Next Saturday night, we're sending you back to the future!
[after Marty caused him to crash into a manure truck]
Biff Tannen: [to his friends] I'm gonna get that son of a bitch.
Marty McFly: Since when can weathermen predict the weather, let alone the future?
Dr. Emmett Brown: Now, if my calculations are correct, when this baby hits 88 miles an hour, you're going to see some serious shit!
Biff Tannen: What are you looking at, butthead?
Skinhead: Hey, Biff, get a load of this guy's life preserver. Dork thinks he's gonna drown.
Marty McFly: [sees that he has destroyed the huge speaker] Whoa! Rock 'n' Roll.
Marty McFly: [Reading a letter he has just written] Dear Dr. Brown. On the night that I go back in time, you will be shot by terrorists. Please take whatever precautions are necessary to prevent this terrible disaster. Your friend, Marty.
[Writes the words "Do not open until 1985" on the envelope]
Sam Baines: Stella! Another one of these damn kids jumped in front of my car! Come on out here! Help me take him in the house!
Dave McFly: [kissing George McFly on the head] See you later, Pop. Whoo! Time to change that oil.
Clocktower Lady: [interrupting Marty & Jennifer's kiss] Save the clock tower!
Lorraine Baines: I've never seen purple underwear before!
Lorraine Baines: It's our first television set. Dad just picked it up today. Do you have a television?
Marty McFly: Well, yeah. You know we have... two of them.
Milton Baines: Wow! You must be rich.
Stella Baines: Oh, honey, he's teasing you. Nobody has two television sets.
George McFly: I know what you're gonna say, Son, and you're right.
[chuckles breathlessly]
George McFly: You're right. But, uh, Biff just happens to be my supervisor, and I'm afraid I'm just not very good at... confrontations.
Marty McFly: But the car, Dad. I mean, he wrecked it. He totaled it. I needed that car tomorrow night, Dad. I mean, do you have any idea how important this was to me? Do you have any clue?
George McFly: I know, and all I can say is I'm... I'm sorry.
Marty McFly: Do you know where Riverside Drive is?
Sam Baines: It's on the other end of town. A block past Maple. East end of town.
Marty McFly: A block past Maple? That's, uh, that's John F. Kennedy Drive.
Sam Baines: Who the hell is John F. Kennedy?
Lorraine Baines: Kids, we're gonna have to eat this cake by ourselves. Your Uncle Joey didn't make parole again.
[drops the cake on the dining table. It reads "Welcome Home, Uncle Joey"]
Lorraine Baines: I think it would be nice if you all dropped him a line.
Marty McFly: Uncle "Jailbird" Joey?
Dave McFly: He's your brother, Mom.
Linda McFly: Yeah. I think it's a major embarrassment having an uncle in prison.
Lorraine Baines: We all make mistakes in life, children.
Dr. Emmett Brown: [Doc has just finished the final preparations for Marty's return to 1985] Well, I guess that's everything.
Marty McFly: [pause] Thanks.
Dr. Emmett Brown: Thank *you*!
[Marty emotionally embraces Doc, which surprises him]
Dr. Emmett Brown: See you in about 30 years.
Marty McFly: I hope so.
[concerning his audition tape]
Marty McFly: What if I send in the tape and they don't like it? I mean, what if they say I'm no good? What if they say, "Get outta here, kid. You got no future"? I mean, I just don't think I can take that kind of rejection. Jesus, I'm starting to sound like my old man!
[in 1955, catching George spying on a woman undressing in her bedroom]
Marty McFly: He's a Peeping Tom!
[first lines]
1985 radio announcer: October is inventory time, so right now, Statler Toyota is making the best deals of the year on all 1985-model Toyotas. You won't find a better car at a better price with better service anywhere in Hill Valley. That's Statler Toyota in downtown Hill Valley.
Dr. Emmett Brown: You'll have to forgive the crudeness of this model. I didn't have time to paint it or build it to scale.
Dr. Emmett Brown: You're late! Do you have no concept of time?
Marty McFly: Hey, come on. I had to change. Do you think I'm going back in that-that zoot suit? The old man really came through. It worked!
Dr. Emmett Brown: What?
Marty McFly: He laid out Biff in one punch. I didn't know he had it in him. He's never stood up to Biff in his life!
Dr. Emmett Brown: [looks at the restored picture, realizing the implications of what Marty just said] Ever?
George McFly: [on the day after the evening Marty disguises himself as an alien and makes a threatening visit to George] Marty! Marty! Marty!
Marty McFly: Hey, George, buddy, you weren't at school. What have you been doing all day?
George McFly: I overslept. Look, I need your help. I have to ask Lorraine out but I don't know how to do it.
Marty McFly: Alright, okay, listen, keep your pants on. She's over in the cafe.
[George heads for the cafe, Marty races after him]
Marty McFly: What made you change your mind, George?
George McFly: [loud enough for a couple walking by to hear] Last night, Darth Vader came down from Planet Vulcan and told me that if I didn't take Lorraine, that he'd melt my brain!
Marty McFly: Yeah, well, uh, let's keep this brain-melting stuff to ourselves, okay?
George McFly: Oh, yeah! Yeah!
Mark Dixon: Scram, McFly. I'm cuttin' in.
Biff Tannen: I have your car towed all the way to your house and all you got for me is lite beer?
Marty McFly: Okay. Time circuit's on. Flux capacitor, fluxing. Engine running. All right.
[the engine stops suddenly]
[on the phone]
Marty McFly: You know, Doc, you left your equipment on all week.
Dr. Emmett Brown: My equipment. That reminds me, Marty. You better not hook up to the amplifier. There's a slight possibility of overload.
Marty McFly: Yeah, I'll keep that in mind.
Marty McFly: My name is Lord Vader. I am an Extraterrestrial from the planet Vulcan.
Linda McFly: Then how am I supposed to ever meet anybody?
Lorraine Baines: Well, it'll just happen. Like the way I met your father.
Linda McFly: That was so stupid! Grandpa hit him with the car.
Lorraine Baines: [wistfully] It was meant to be.
[Marty enters his house and sees Biff harrassing George]
Biff Tannen: I can't believe you'd loan me your car without telling me it had a blind spot. I could've been killed!
George McFly: Blind spot? Now, now, Biff, now I never noticed that the car had any blind spot before when I would drive it. Hi, Son.
Biff Tannen: What, are you blind, McFly? It's there. How else do you explain that wreck out there?
George McFly: Biff, can I- Can I assume that your, uh, insurance is gonna pay for the damage?
Biff Tannen: My insurance? It's your car. Your insurance should pay for it. I wanna know who's gonna pay for this?
[shows his shirt]
Biff Tannen: I spilled beer all over it when the car smashed into me. Who's gonna pay my cleaning bill?
Marty McFly: Let's go over the plan again, so eight-thirty where are you going to be?
George McFly: I'm gonna be at the dance.
Marty McFly: And where am I gonna be?
George McFly: You're going to be in the car with her...
Marty McFly: Right, so right around nine o'clock she's going to get very angry with me.
George McFly: Why would she get angry with you?
Marty McFly: [reluctantly] Because, George, nice girls get angry when guys take advantage of them.
George McFly: [Realizing] Ho! Hooo! You-you mean you're going to go touch her on her -
[gestures at a bra in his hand]
Marty McFly: No, no, no listen, George it's just an act! Okay? So around nine o'clock you're walking through the parking lot, you see us... struggling in the car. You walk up, you open the door and you say
Marty McFly: ... your line, George!
George McFly: Oh! "Hey you! Get your damn hands off her!"
Marty McFly: [introducing his band] All right.
[microphone feedback]
Marty McFly: We're the, uh... We're the Pinheads.
George McFly: You really think I ought to swear?
Marty McFly: Yes, definitely. Goddamn it, George, swear.
Dr. Emmett Brown: Oh, my God. They found me. I don't know how, but they found me. Run for it, Marty!
Marty McFly: Who? Who?
Dr. Emmett Brown: Who do you think? THE LIBYANS!
Marty McFly: HOLY SHIT!