I don't think there's that many successful game to movie adaptations so far apart from Final Fantasy VII: Advent Children. Tomb Raider was so-so and the Resident Evil movies weren't really any good either (what's with everyone copying the Matrix effect?). I always thought that if they're going to make a movie out of a game, they might as well keep to the pre-rendered CG footage that they use in-game. I'm sure if the game developers went along with that idea then the movies would be much better. Less limitations.
Well, it looks like that's exactly what Sony and Capcom are going to do. According to Animaxis' newsletter, Capcom and Sony Pictures Entertainment are going to produce a full CG movie named "Biohazard: Degeneration" which, will be a story that is separate from the game and live action movie series. That's about it as far as the details go at the moment but I'm sure it's going to turn out good.
Now Blizzard. Please do the same thing with your Warcraft movie.