Soon We'll Have to Ask: What Came First - The Videogame or the Movie?

As if DOOM wasn't enough. Or Castlevania. Or Dungeon Siege. Now news of Silent Hill, this time with pictures!

Is this genre done yet? Please? Upon reflection, this is at least maybe marginally better than the every movie needs a game with it trend, because at least you know the truly awful games don't get movies made, whereas some truly awful movies get truly awful games with them.