Cartoonist, animator and artist Gerald Scarfe is known for such works as his animation in Pink Floyd's The Wall and his illustrations for the TV series "Yes Minister". You may have also seen his drawings in the New Yorker.
In 1971, while working with the BBC, Scarfe traveled to Los Angeles to study a new animation system and made a film about his experiences in the US, titled "A Long Drawn Out Trip".
Even though this was Scarfe's first film, there's no mistaking his voice and style. A skeleton pulls out a rib and it turns into a naked woman; flying bombs turn into a giant robotic hand; "Star-spangled Banner" plays (Hendrix's version naturally) while the image on the screen morphs from a jumble of inky squiggles into Nixon and Batman. (And finally, poor Mickey Mouse gets stoned.)
The full film is not available online but someone on YT has been nice enough to post some excerpts of the film, including a "missing scene". So enjoy this footage of Gerald Scarfe's A Long Drawn Out Trip. (Parts of the film are NSFW.)