Just saying; greatest film I've ever seen. I could write an entire blog on how much I loved The Avengers/Avengers Assemble/whatever. They shouldn't let anyone except Joss Whedon near a Marvel film again.
Regardless, this, from Soundgarden, is one of the tracks from the soundtrack to this most epic of films, and it is pretty damn good. A very cool riff and a well-written song, awesome solo too. I also thought the guitarist was The Edge from U2, from a distance anyway.