This is off the top of my head so I can almost guarantee I'll forget something, plus Weekend is soon to come out on DVD, so any chance to praise it I'll take.

1. Weekend - 1967 - Jean Luc Godard
2. Napoleon - 1927 - Abel Gance
3. The Conformist - 1970 - Bernardo Bertolucci
4. The Grand Illusion - 1937 - Jean Renoir
5. Jules and Jim - 1962 - Francois Truffaut
6. The Passion of Joan of Arc - 1928 - Carl Theodor Dryer
7. Last Tango in Paris - 1972 - Bernardo Bertolucci
8. Au Hasard, Balthazar - 1966 - Robert Bresson
9. Children of Paradise - 1945 - Marcel Carne
10. Celine and Julie Go Boating - 1974 - Jacques Rivette

I know I forgot plenty, but post your own list so I can smack my head against the wall.