I see there's a Silent Hill movie out. I guess that's based on the game. Plundering game IP for movies seems to be getting more and more popular.
"Based on" in the sense of using the name, a few vaguely familar sets and not much else, from what I've seen. What makes Silent Hill stand out from other Survival Horror games, for me, is that it's very psychological, very much about atmosphere, and it's as much the mysterious plot which draws you in as anything else. I've a feeling the movie will ditch the mysterious plot for a typical "girl in peril" cliche and will ditch the psychlogical aspects for lots of gore and shocks.
Oh, and the lead actress looks a bit like the girl from one of the Silent Hill games. The guy's wife in SH2, I think.