FEAR could probably be made into a good movie. It's got about the right amount of plot (enough to keep a movie going for two hours, but not so much that it has to be rushed or cut) and would provide some very good action sequences.
The problem of turning something from a game into a movie is that a game is designed to last for long periods of time, while a movie tends to aim somewhere around the two hour mark, so any plot heavy game (which are the ones people would think of for movies) won't fit very well.
That being said, I think there's a lot of scope for movies telling new stories in game settings. I would love to see the Half Life universe expanded like this, maybe with something set during the 7 hour war. Or maybe something in the Fallout setting, just staying away from the actual plot of the games.