Haven’t seen this film in ages. It used to play on HBO frequently back in the 80s. It was as much “based on a true story” as “The Wild One” (i.e. Not much at all). Great soundtrack and real-time depiction of 70s youth culture.
There’s a scene where Dillon refers to Jimi Hendrix as ‘old sh&*t’. This was slightly before the emergence of ‘Classic Rock’ radio that would make the 60s artists hip again.