My scope here is wide. I've enjoyed interviews with Jim Morrison, Charles Manson, and other unusual people of various unrelated walks of life. Documentaries on Jackson Polluck, Mark Borchardt, and others have been interesting as well.
This link enumerates much of what I'm looking for - people or cultures which, whether because of delusion or some other cause, are entirely different from my experience: http://www.listal.com/list/weird-weirder-weirdest-documentaries
Cults are good. Strange artists like Pollock or Morrison are as well. Anyone who has been subjected to bizarre circumstances would probably get my mind churning.
Thanks.