À l'intérieur (2007)
À l'intérieur or Inside is one of the best horror films I've seen lately. If you are a fan of gore, there is plenty of it; if you like psychological horror, you will be scared shit-less. Foreign horror films are leaps and bounds ahead of whatever hollywood pumps out. I think it's the willingness of foreign filmmakers to push what is acceptable. Definitely check this film out, you will not be disappointed.
Imdb: http://www.imdb.com/title/tt0856288/
