The Lives of Others, In the Mood for Love, Infernal Affairs, City of God, P. T. U., The Proposition, The Devil's Backbone, City of Lost Children, Brazil, Rosencranz and Guildenstern are Dead, Yojimbo, Le Samourai, 8 1/2, La Dolce Vita, Seven Samurai, all of the Monty Python films.
Plus there's a ton of great action movies out of Hong Kong.
Most Helpful Girl
"Amélie" is one of my favorite movies. Some other foreign language films:
Kung Fu Hustle
The Extraordinary Adventures of Adele Blanc-Sec
Let the Right One In
Jagten (The Hunt)
If you want a Halloween/horror one, try "Suspiria". The cinematography is really nice, scoore is cool, and the acting is ok.
Once, great British movie. :) and there is a next movie named Y tu Mamá También, which is a cool Mexican movie but It's like the opposite of Once. Wile Once is romantic the other movie have lost involve.