We got Doom, Resident Evil, Halo, Prince of Persia, Hitman, Wing Commander, Tomb Raider, Silent Hill and many other game-to-movie adaptions.
How about a Bioshock movie ? I have to admit, I really would love to see it.
Maybe Christophe Gans is a good directer. I liked the visual atmosphere of Silent Hill, though the script could have been better. He surely would transfer the mood of Rapture....or Guillermo Del Toro?