There are lost of books already
I think a lot of people have a secret desire for a feature mech film rising up in them for quite some time now. It would be good to come out of the closet to the world with how awesome our nerdy fetish really is. It would have to be, you know, actually good tho, and not the crappy adaptation movies usually are of these kinds of things.
This can become a reality, but for that to happen, we'll need a block buster movie based on a video game to open up the market.
For a long time movies based on comic books were horrible and low budget, then Spiderman came out, and now there's a new comic book movie every few months. Same goes for movies based on Saturday morning cartoons, although Ninja Turtles 1/2/3 were bad ass, the market didn't really open up until recently with Transformers. Even so, most cartoons have a comic book series as well, so I guess they're pretty much the same. /nerdoff
~Comic/Cartoon to Live-Action Movie List~Movies based on games have a horrible track record and no studios want to pick them up. I hate to envoke these 3 letters on the forums of a TRUE game, a MECH game, but my prediction is that if the WoW movie does good, then other game movies will follow. First they need to prove they can base a movie on a game and make it serious and interesting, and not just have lame inside jokes througout the entire movie. If any game based movie is going to blast open the market and blaze a trail, it'll be WoW.