I don't watch many foreign films, and when I do it's usually campy horror/action stuff. So I'll just add:
醉拳 (Drunken Master)
Which I'm sure everyone knows. You could put any martial arts movie here, actually, like Ip Man and Goemon. They're all fun to watch.
A fun martial arts film with Tony Jaa displaying muay Thai style. So there's lots of elbows and knees to the head.
ต้มยำกุ้ง (The Protector)
Another Tony Jaa martial arts movie with some fun action scenes, including a Capoeira fighter. It also has one of my favorite one-take continual action sequences. The dude just wants his elephant back.
Shaolin Soccer and Kung Fu Hustle are also great for MA comedies.
El laberinto del fauno(Pan's Labyrinth)
Which I'm sure everyone knows as well.
Død snø (Dead Snow)
There's just something about undead Nazis that's charming.
New Zealand film about killer sheep that's so far awesome beyond words.
So, yeah, nothing too serious here.
Edit: Oh, and the ones on Netflix streaming: Dead Snow, Drunken Master, Ong-Bak, Ip Man and Goemon. I wouldn't really suggest Goemon, I don't think it's that stellar of a film, but the others are fun.
Edit 2: I also have a co-worker who said the Spanish horror film [REC] was really good. Unfortunately I can't watch it since it has hand-held cameras and I have bad motion sickness. x.x