UN CHIEN ANDALOU (1929)

Probably the best known surrealist avant garde movie, co-created by none other than Salvador Dalí. He wanted it to piss everyone off, and was annoyed that people seemed to like it.

BELLE DE JOUR (1967)

Luis Buñuel deftly portrays the inner sexual fantasy life of a beautiful Parisian woman in a way that the movies really hadn’t before.