I've thought about this ever since Assassin's Creed two. The mini-movie that comes with it is pretty amusing and entertaining. So I thought about this, should it become a movie and maybe branch off from there? I'd like a movie series, because the games themselves offer a huge story and entertainment, a movie would make it even better.
I think it could be done and be done well. They showed a little bit of what they could do when II came out and they had that clip on the disk. I think they later released the whole movie on blu-ray or youtube, can't remember now, but I watched it and it was actually very good. So give them a budget and I think you could have a very good movie.
What does Off-Topic think about this?
Steam: RobotDeathParty
Making it a movie will, well, make it a movie... Think about this and remember any other movie ever based off of a game.
I guess if they did it well enough it could be a cool movie though.