Mad Max and the Road Warrior.
While the current Mel Gibson is, IMO just creepy and disturbing, in his youth he was a good looking man, and he plays a sanity-challenged person better than just about anyone, with the exception of Peter O'Toole. I saw O'Toole in a movie once where his character was not at ALL reality-challenged, and it creeped me out massively- there was something about him being SANE that was dowright eerie. I kept expecting him to have a psychotic break.