I don't like the Idea of a movi based on the story of a game, because we would already know the full storie, and there is always some thing they didn't put in the movie that you liked, like in the Lord of The Rings, I hate that they didn't had anything about Tom Bombadill (I don't know his name in the USA, I live in Brazil).
Nut I would love to see a movie between games, explaining something that happend between the games that we dont know, or something like that.