The Cave - It should be a no brainer; even if you're not claustrophobic the idea of being trapped a mile underground should give you the willies. Unfortunately, The Cave fumbles this with three problems:

1. It's too dark down there. Hiding your monsters is de rigeur in horror movies, but The Cave manages to hide everything as well. Our heroes are equipped with their own lights of course, but they're hand-held things and when thrashed around by victims obscure events more than reveal them.
2. No-one's scared. As one character notes, if anyone else was stuck down where they are, they'd be the ones sent to rescue them. They're the experts at being a mile underground, so no-one's worried about it.
3. At some point in the process, someone said “wouldn't it be great if the monsters were humans mutated by a weird parasite into bat-like monsters that need six-inch claws to eat fish” and no-one stood up and said it was a stupid idea. Then someone else must have said “what about if we make out that the parasite adapts its hosts to living underground and destroys their intelligence, but right at the end have it take over someone and not adapt them but instead take them over mentally and escape into the world” and, instead of them being beaten to a pulp, someone else said “I smell sequel!”

King Kong - Peter Jackson's version. Apparently, he's so god-damn good now he doesn't need to be edited any more. This thing's three hours long (well, less ten minutes for the credits) when it really could have been at least an hour shorter. There's innumerable long, shots of people looking at things and at least one fight scene that is in slow motion for no discernable reason. I hear he wants to make an extended version, which boggles the mind. I couldn't say how faithful it is to the original(s), since I haven't seen them, but the basic story is decent - if a little out of date now (I'd be interested in seeing what an updated version of the story might be as well as the FX) and allegedly a touch racist.