An unemployed pot-smoking slacker and amateur drummer, Anthony Stoner (Tommy Chong) ditches his strict parents and hits the road, eventually meeting kindred spirit Pedro de Pacas (Cheech Marin). While the drug-ingesting duo is soon arrested for possession of marijuana, Anthony and Pedro get released on a technicality, allowing them to continue their many misadventures and ultimately compete in a rock band contest, where they perform the raucous tune "Earache My Eye."
Release date: September 15, 1978 (USA)
Directors: Tommy Chong, Lou Adler
Distributed by: Paramount Pictures, FilmFlex
Car movie: Up in Smoke
Box office: $104 million