The Passenger (1975) is one of my favorite movies with Jack Nicholson. Hollywood would never make such a film. Professione: reporter (1975) - IMDb
Forgotten the name but its the one which took place in the TittyTwister Bar which was filled with vampires and other creppy crullies!
I've never seen any of them, and I do not intend to...but from what I've read, the Human Centipede movies (1, 2, & 3) are most definitely "weird". Also...Hostel. I saw the first one, wish I hadn't. I think there was a second one, maybe a third or more?