Music

Ok, I can place most of the music from the film, since it's almost entirely lifted from other films. The biggest named composers credited are John Williams, Hans Zimmer, and James Newton Howard. They are certainly not the only composers whose work is used though...anyone catch the 'Shadow of the Colossus' theme in there? Anyway, My question is....what is the theme played at the end when the credits begin to roll? I know I have heard it and RECENTLY.....but I can't figure out from where. It is driving me crazy. Or, should I say , Batty? Anyone?