Name the weirdest, craziest movie you've ever watched

Forgot the title of that movie…it was more weird movie than horror one…the scenario was people who watch a play and every act will be the situation of those who left the play.. until there where 3 left of them….couple and a man.. when the guy (in the couple) left for rest room..the enactment was about the Guy who left and what he was doing when he left the room…everything they do is being repeated on play afterwards.

And the most weird and bizarre movie I’ve watch so far was Saló (120 days of Sodom)