A bioshock movie would be really great. Except that they might screw it up.
It might get a R rating, and the killing of children might get it banned. You know when people harvest the little girls in the game from those robot bigdaddy things.
You know like Jake Gyllenhal playing a persian character kind of awful.
God of war and Prince of persia will probably suck as movies.
Not to mention they will probably ruin Metal Gear.