The Trip/Fun Facts

• Co-star and future director Dennis Hopper shot the nighttime Sunset Strip footage used in the film.

• The film was rejected for a UK certificate 4 times by the BBFC (in 1967, 1971, 1980 and 1988) as it was considered an advertisement for the use of LSD. The film was shown uncut on the FilmFour satellite channel in 2002 and finally given a fully uncut UK DVD certificate in January 2004, almost 37 years after its first BBFC submission.

• Some of the music was provided by the group The Electric Flag.

• In order to prepare for the film, Peter Fonda, Dennis Hopper and Jack Nicholson all engaged in a group LSD trip.

• Roger Corman also took LSD before starting the film, figuring he couldn't make a film about LSD without trying it himself. He had a good experience, and had to ask others what a "bad trip" was like in order to incorporate it into the film.

• Jack Nicholson wrote this screenplay for Corman based on his own experience of taking LSD under controlled laboratory conditions and also on his marriage break-up with first wife, Sandra Knight.

• Bruce Dern wanted nothing to do with the drug culture, and had to ask director Roger Corman what LSD was in order to prepare for his role.

• The band in the club near the beginning is the International Submarine Band, featuring Gram Parsons on vocals. However, their early country-rock sounds were removed and the psychedelic sounds of The Electric Flag were dubbed into the film.

• According to Bruce Dern, Jack Nicholson wrote the part of John for himself. Roger Corman, however, would not agree to Nicholson playing the role and chose Dern instead.