Psych-Out (1968) Deaf runaway hangs out in Haight-Ashbury with Nicholson, Stockwell, and Dern. Not a lick of authenticity, but man, that cast. TIL: Can't help but notice that while the hippies liked the "love thy neighbor" verses, they skipped over the "go and sin no more" parts.
Your daily dose of culture courtesy of The Grim Game (1919) - "No man is sane who does not know how to be insane on proper occasions." - Henry Ward Beecher