I have yet to see this movie (will most likely wait until it comes out on DVD) but from what I have heard the movie starts off with this amazing cover of "Immigrant Song" by Karen O with Trent Reznor and Atticus Ross. After finding it and taking a listen I must agree. This is a great way to start off an action packed movie. Trent is killing it these days with the soundtracks. Who would have thought??