In the scene where Katie and her baby are walking through the Haight-Ashbury after she's just quit her job at the strip club, the man she walks by prior to having her purse stolen is clearly supposed to be Charles Manson.

Sarah's line to Kenny "I saw the best minds of my generation destroyed by madness" is the first line of Allen Ginsberg's poem "Howl".

Actors Donovan and Carnie Wilson are the respective children of musicians 'Donovan' and The Beach Boys' singer Brian Wilson, both of whom are heard in the soundtrack. Jason Nesmith, son of ex-Monkee Michael Nesmith, also appears.