Definitely required for those years but I tend to believe it would be better to find the topic as the main reason behind its manifesto significance. In fact, pop scenography and editing, influenced by a rave-up mood, aren't modern enough. Actors and director don't make such an effort, and the hallucinations sequences are a bit dull. Unimpressive semi-cult.
You'd think someone having a personality crisis had a more interesting trip? Oh well, what do I know. I've never tried LSD. Hopper's scenes were fun, but overall I was disappointed. Being such a short film, this felt like a slog. I think a lot had to with pacing and the doctor's ramblings, but also the content of the hallucinations wasn't that interesting. There were some great colorful scenes, but that's about it.
Incomprehensible drug film from director Roger Corman is not particularly entertaining on any level. The dated style and bargain-basement surrealism could have been fun, but none of it is all that creative. The loose story (written by Jack Nicholson) is basically an excuse to set-up seemingly endless montages set to droning psychedelic rock music that's just annoying more than anything.