Eric Trautmann from Microsoft has posted in our forum about his involvement with Eric Nylund's Halo prequel novelization, The Fall of Reach . In the course of his post, he talked a bit about the movie rumors going around:

First: there is currently NO movie discussion; we've been approached, but we've declined until Jason and Bungie team can devote some attention to it. Right now, before pulling them into a project of that kind of scope, I'd rather sit back and let them bask in the praise and glory they richly deserve.

Trautmann was coyly evasive about whether a possible film would focus on the timeframe of The Fall of Reach , Halo itself, or afterwards.