The Trip is just a film about a guy taking LSD and tripping. That is the entire plot. Roger Corman was at his most experimental here, layering the film with a psychedelic atmosphere and hallucinogenic visuals. Written by Jack Nicholson, the cool, disconnected imagery and rapidly edited montages are very evocative. They're boosted by the colourful sets and great re-use of old material to make the journey feel larger. The Trip is very 60s, capturing the zeitgeist of drugs and hippies, and embracing that trend. It's also very funny and a fair depiction of drug taking which neither glamorises or demonises drug use. It's a groovy film.