I saw it. And, I guess all things considered I really liked it.
The visual effects were really cool. The story line was pretty entrapping. There were only two things that really bothered me. One was that they didn't follow any kind of story line from the game at all. I feel that if you're going to use the premise of a game and some of it's characters and its name for a movie, the least you can do is follow its plot.
The other thing I didn't like was the ending. Too confusing and no closure. It was left blatantly open for a sequel.