Halloween II. 4/10. Kind of interesting with the family ties, but i tend to find monsters scarier if they actually existed in real life. Actually, not scarier, more appalling really.
Sanctum. 6.5/10 Why? I took off points for lack of character complexity. Added points for plot elements (people dying) and general atmosphere of the movie.
The Social Network. It was interesting, partly because the subject is the dotcom industry and they even had some exterior shots that I recognize in SF. I like how they portrayed the characters as flawed rather than idealistic.