A troubled psychologist is sent to investigate the crew of an isolated research station orbiting a bizarre planet.

Chris Kelvin: Earth. Even the word sounded strange to me now... unfamiliar. How long had I been gone? How long had I been back? Did it matter? I tried to find the rhythm of the world where I used to live. I followed the current. I was silent, attentive, I made a conscious effort to smile, nod, stand, and perform the millions of gestures that constitute life on earth. I studied these gestures until they became reflexes again. But I was haunted by the idea that I remembered her wrong, and somehow I was wrong about everything.
Chris Kelvin: And death shall have no dominion. Dead men naked they shall be one with the man in the wind and the west moon. When their bones are picked clean and the clean bones gone they shall have stars at elbow and foot. Though they go mad they shall be sane. Though they sink through the sea they shall rise again. Though lovers be lost love shall not. And death shall have no dominion.
[last lines]
Chris Kelvin: Am I alive, or dead?
Rheya Kelvin: We don't have to think like that any more. We're together now. Everything we've done is forgiven. Everything.
[Speaking for the first time]
Rheya Kelvin: Don't blow it.
Chris Kelvin: [laughs] You start.
Rheya Kelvin: I did.
Chris Kelvin: Really? All right, I'm going to resist the impulse to ask you about the doorknob.
Rheya Kelvin: Do you always resist your impulses?
Chris Kelvin: Not always.
Rheya Kelvin: Try poetry.
Chris Kelvin: And death shall have no dominion...
Rheya Kelvin: Mm, Thomas. It's not a very happy poem, though.
Chris Kelvin: Well, you didn't seem very happy when I saw you on the train.
Rheya Kelvin: [laughs] I wasn't.
Chris Kelvin: And tonight?
Rheya Kelvin: It's early.
Chris Kelvin: Can you tell me what's happening here?
Snow: I could tell you what's happening, but I don't know if it would really tell you what's happening.
Chris Kelvin: What does Solaris want from us?
Gibarian: Why do you think it has to want something? This is why you have to leave. If you keep thinking there's a solution, you'll die here.
Chris Kelvin: I can't leave her. I'll figure it out.
Gibarian: Do you understand what I'm trying to tell you? There are no answers, only choices.
Gibarian: There are no answers. Only choices.
Rheya Kelvin: Were you alone?
Chris Kelvin: Yes.
Rheya Kelvin: Was that difficult?
Chris Kelvin: It was easier than being with someone else.
Gibarian: We take off into the cosmos, ready for anything - - solitude, hardship, exhaustion, death. We're proud of outselves. But when you think about it, our enthusiasm's a sham. We don't want other worlds; we want mirrors.
Chris Kelvin: Why did you kill yourself?
Gibarian: It seemed like a good idea at the time, now I think I made a mistake.
Gordon: We are in a situation, that is beyond morality.
Chris Kelvin: Why haven't you come home? What happened here? What did you find?
Gordon: Who are you representing, exactly?
Chris Kelvin: I represent the last effort to recover this mission before they abandon this ship and everyone on board.
Gordon: Until it starts happening to you, there's really no point in discussing it.
Chris Kelvin: How about you? How are you doing?
Gordon: Depression along with bouts of hypomania and primary insomnia, suggestions of agoraphobia, obsessive-compulsive disorder, shock, fatigue, denial.
Chris Kelvin: None of which is unusual given the circumstances.
Gordon: I know.
Rheya Kelvin: I can't remember how I got here. Did I come here with you?
Chris Kelvin: I don't know how you got here.
Rheya Kelvin: What do you mean?
Chris Kelvin: I woke up and you were here.
Snow: He attacked me. There I am - somehow, there I am - and I couldn't tell you... couldn't tell you how I'm there or who I am or what's going on. But before I can get to that, what's this over here - coming at me? What... what are you trying to do? Oh, I see, you're trying to kill me. Yeah confuse me. I'll tell you about some confusing. How about bingo, there you are. And, whoop, there's my welcoming committee, and you dropped your knife and this is a good night. And, oh, by the way, uh, after all that, I find out, this, uh... whoever this is... get my first good look in, and it happens to be... I survived the first thirty seconds of this life... whatever you want to call it... by killing someone. And, oh, ah, by killing someone who happens to be me. See most people, I would think most people in this position would be like, "This... Ah, hmm... I don't know." However, this is at least, this is an incredible opportunity. This is a... what if this is a... this is a gift? I'm a gift. Hey.
Gordon: I say we use the Higgs device on him.
Snow: You know what happens when women get together on something? All kinds of shit you can't explain happens. But good shit. Mysterious, but good. Usually very good. Things get solved.
Gibarian: You think you're dreaming me.
Chris Kelvin: You're not Gibarian.
Gibarian: No? Who am I then?
Chris Kelvin: A puppet.
Gibarian: And you're not? Or maybe you're my puppet. But like all puppets you think you're actually human. It's the puppets dream, being human.
Chris Kelvin: I don't believe that we are predetermined to relive our past.
Rheya Kelvin: You found me.
Chris Kelvin: I came back for you. I came back that day. I'm sorry
[first lines]
[Chris's memories, in voiceover]
Rheya Kelvin: Chris, what is it? I love you so much. Don't you love me anymore?
Gibarian: If you think that there is a solution, you'll die here.
Friend #1: The pope is a wonderful woman!
Chris Kelvin: What about your visitor, the one you're so ready to destroy without hesitation? Who is it? What is it? Does it feel? Can it touch? Does it speak?
Gordon: We are in a situation that is beyond morality.
Rheya Kelvin: [Remembering their apartment] There were no pictures on the walls. I always thought that was strange.
Chris Kelvin: Where have you been?
Rheya Kelvin: Away from those fucking people.
Chris Kelvin: They're my friends.
Rheya Kelvin: Yeah.
Snow: How much sleep ya need, Kelvin?
Chris Kelvin: How much sleep?
Snow: Yeah. Um, how long ya think you can go without sleep?
Chris Kelvin: Depends.
Snow: Well, when you do go to sleep... I find I sleep much better with the door locked.
Gordon: She is not Human! Now I don't know about you, but I feel threatened by that.