I've said it before - I'd like to see
Halo turned into a quality sci-fi flick, if it did
not involve Master Chief as the main character. If the film illustrated a small group of marines fighting their way through, and bonding with each other (not physically, you sickos), fighting aliens in small engagements, using tactics/covering backs, etc - then it would do well. It could be along the same lines as Starship Troopers, I'm thinking - except without all the campiness and cheesy gore; much more gritty realism, serious interaction, some dark "soldier" humor (FUBAR, etc.), lots of good war action, more convincing writing/dialogue...you get the idea.
And the film could likely open with a beach landing operation involving the marines (similar to "The Silent Cartographer" level in the game, and I guess maybe too much like the Normandy landing in
Saving Private Ryan), and culminate with a major engagement involving alot of forces (possibly in a city, such as the battle seen in the E3 2003 Halo 2 trailer), with Master Chief eventually coming along and taking charge of the troops. Likely, the film could have played up the "legendary" status of Master Chief all along, with the marines trading rumors and such about him, and then finally show him in action at the end of the film.
I'd go see it.