An aging rock star decides to change his life when he discovers a 40-year-old letter written to him by John Lennon.

Mary Sinclair: I'm sorry, are you on drugs?
Danny Collins: Currently or in general?
Danny Collins: Dinner tomorrow?
Mary Sinclair: You know what I like about you? You never give up
Danny Collins: Some dinners are worth fighting for.
Danny Collins: Hank, I haven't written a song in thirty years. THIRTY YEARS. I'm a fucking joke.