The original version of Mirrors is a pretty good horror, but don't waste your time with the American remake.
The Loved Ones is a superior slice of horror hokum and well worth your time if you're looking for something nastier than the tame teeny-ticklers clogging up cinemas.
Battle Royale is an incredible film and a must-see, in my opinion. Note: avoid the sequel at all costs!
Kontroll is a little gem of a movie that deserves to be better known.
I've written a comic! It's really good - promise! Check it out HERE