The Discreet Charm of the Bourgeoisie (1972)

Luis Buñuel's best joke, stretched to feature length and never wearing thin. A group of wealthy friends, led by Fernando Rey's smooth diplomat, keep sitting down to dinner and keep getting interrupted, by soldiers, a dead innkeeper's vigil and, increasingly, by their own dreams, one of which leaves them seated on a stage in front of a jeering audience. The film never explains itself, and the characters accept every absurdity with perfect manners, which is precisely the satire. Buñuel once joked that whenever he needed another scene he simply filmed one of his dreams. It is the funniest film on this list and a fine introduction to surrealism for anyone wary of the word.