Gears of War is grinding towards completion. Keep in mind, though, this article does not mention whether the script and director are any good. Hopefully he or she won’t use actual gameplay as part of the film, a la House of the Dead.
I’m still playing the PC version of GoW and it looks great, they could probably just have a pro speedrun it (it’d be under 2 hours) and put that on the big screen with a little editing. I’d watch it. But then, I also watch Excitebike speedruns.