I could only figure out one bit of music from the trailer :S
hehe im sure the rest of you could shed some light on this :P

00:00 - 01:12 - Nothing
00:45 - 01:12 - God Speed You Black Emperor - East Hastings
01:12 - 01:44 - ?? (Track 2)
01:45 - 01:58 - Brian Eno - An Ending (Ascent)
01:58 - 02:09 - ?? Same as Track 2)

thanks to lebowski from the Soundtrax forum for track 1

updated .. still needs track 2.. anyone?!??! carl chris.. can you guys post a track listing from the ends credits?? :P