It had a script. It had the backing of two major film studios. It had the support of Lord of the Rings director Peter Jackson.
Everything seemed like it was clicking into place for the Halo movie before it abruptly collapsed, and you can blame Microsoft for that, according to writer Jamie Russell. Writing in his new book Generation Xbox: How Videogames Invaded Hollywood, Russell says the project fell apart because Microsoft was unfamiliar with the glitzy world of moviemaking.