Music Iron

What is the intro music to Iron Maiden’s 2003 DOTR tour?

youtube vid: http://www.youtube.com/watch?v=dX9aUFdlC2Q

That’s a clip from “Carmina Burana”, by German compser Carl Orff. Not sure which movement it is; the whole piece when performed can be close to 2 hours long.
Hope I’ve narrowed your search a bit though!