Can you name this (movie) song?

I do not know much about it, however It is in a lot of movies such as End of Days, a lot of horror movies. It always plays at the climax of a scene usually, and all I can really tell you is that it's some sort of a chant. There really are no lyrics, at least that I can make out.

If you're just confused, I don't blame you...no one can seem to tell me the name of this song! You've all heard it though, believe me.

try "o fortuna" by carl orff