Just because the game is filled with nerds and geeks, doesn't make it a bad game. I played it for a few months before getting bored but it was a still a pretty cool game. And even if the game was absolutely terrible, doesn't mean the movie will be.
Hell they could make an awesome movie with great special effects and stuff with a really high budget. So just because you don't like the game doesn't mean it will suck. Besides there's even been great games with shit movies like Super Mario Bros etc.
So I'll watch it if the trailer looks good enough, and I hope they don't make it PG I want some M or R rated violence.