Andy Kaufman: The Midnight Special(1981)

Overview:

The big mystery about Andy Kaufman's work is in trying to figure out what's serious, what's an act, why he is doing what he's doing, and whether he even knows the differences himself. His performances are among those rare examples where you feel extremely uncomfortable watching them, but at the same time you can't pull yourself away because it's hysterical in a twisted and bizarre sort of way.