Nektonic
Veteran
The weirdest film I ever saw was by Jan Svankmeyer. I think perhaps it was called Faust.
Yeah, Jan Svankmeyer made some weird but good stuff. I have a short film collection of his on DVD with some really great stuff. One of his that I couldn't handle was ALICE, which is a live action / stop-motion adaptation of Alice in Wonderland. The problem is the sound design. There is barely any dialogue, if any, and the whole film is grinding and crunching metal sounds that just F's up your brain. The film is somewhat weird but the experience is of watching it is weird and extremely unpleasant.
http://www.youtube.com/watch?v=C5wHMgTPF-s