There's a section of the Avatar Soundtrack, track #13: War, that i can't find it's film counterpart for.
Now, the section in mind appears around 7:00, and continues for about 20 seconds. I listened to the soundtrack while watching the battle, but it doesn't seem to sync up quite right. I'm hoping for my fellow contributors to help me with this, as I've exhausted every possibilty. I even came across a version of "WAR" labeled: "film version", but it too has this particular piece of musik, just not in the same place, as there is a small change of score near the begining.