The Trip (1967)

A television commercial director, is in the midst of a personality crisis. A self styled guru guides him through his first trip on LSD.

Starring Peter Fonda and Dennis Hopper, directed by prolific producer Roger Corman and written by Jack Nicholson, this is a truly stoned out movie that uses the drug influenced 1960s as the catalyst for a story that could only have come out of that era.