It’s not feature length, but 12 Monkeys is based on a short film by Chris Marker called Le Jetée which I highly recommend, along with all of Marker’s work, really. Marker deals a lot in documentary with a surrealist touch, and thoughtful narration. He’s a good old leftist too.
All the movies you mentioned are not just psychological, but are messed up temporally, so you might appreciate a newer movie called Time Addicts. Watched a bit of it and it was funny, dark, and wild, as a time traveling movie about meth should be.
The Manchurian Candidate is great (both versions are really, though I prefer the one from ‘62) as it deals with a character piecing together an experimentation plot involving hypnotism and proto mk ultra mind control. If I think of more when I’m rested i’ll jump back and comment again.
Love this song, love the original brains version. First one i heard was this one by high standard. Cyndi’s version is great for karaoke