Okay, so it's not a movie score, but it sounds like it'll warrant its own dedicated thread. According to this article, it's a 90-minute score recorded with 80 musicians of the Skywalker Symphony Orchestra. Best of all, it's by Mark Griskey, who composed the wonderful Knights of the Old Republic II score. The game's official site loads up with what could be part of The Force Unleashed Main Theme. If not, it still seems to be indicative of the game's epic tone.