Brotherhood of the Wolf;
French, fantastic, set in the days of three cornered hats, very stylish, maybe a bit of a boys film but with much more depth than the Hollywood drivel

Old Boy;
Korean, unbelievably good, very deep, very good story. With a very big OMG moment at the end.

Ran;
Akira Kurosowa [no appologies if I spelt that whong], medieval Japanese version of King Lear, about 4 hours long, breathtaking scenery and scenes.

Memento;
I could tell you the whole story and not spoil a thing, gut with an extremely short term memory due to an assault trying to find his wifes killer, he can only remember about the last 3 or so minutes. Incredible.