The thing is you need to start somewhere, and I doubt Bungie would want any kind of "new" story, such as something to do with the events after Halo 2, because then people would need to know about the background of Halo in order to understand a lot of things, and they'll never do that in a movie, unless they did a lot of flash back and information scenes, which would drag it down, also something they wouldn't do. I just think the the orginal Halo is the best for the start of the movies, there are always room for sequals!
