Le fantôme de la liberté (1974) Luis Bunuel's

The Phantom of Liberty // El fantasma de la libertad [Luis Buñuel] - One of Luis Bunuel's most free-form and purely Surrealist films, consisting of a series of only vaguely related episodes - most famously, the dinner party scene where people sit on lavatories round a dinner table on, occasionally retiring to a little room to eat.