Up in Smoke

Two stoners unknowingly smuggle a van - made entirely of marijuana - from Mexico to L.A., with incompetent Sgt. Stedenko on their trail.
An unemployed pot-smoking slacker and amateur drummer, Anthony Stoner ditches his strict parents and hits the road, eventually meeting kindred spirit Pedro de Pacas. 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."