Ok, This is a stretch but I will give it a try. Looking for the name of a classical piece that is used in quite a few movie trailers and movie soundtracks. It has a "choir" influence and starts slow and builds.
Kind of like the "Glory" soundtrack with the boys Choir from Harlem.
It may have also been used for the beginning of the movie "Jackass".
Any thoughts?

Check in the music ask advice columb I think it your answer is on page 2. some one iwas looking for a suitable opera track. Check there and you should have your answer

Yeah search for fortuna or something

I'm pretty sure it's a piece titled Carmina Burana, by Carl Orff. I haven't heard the whole thing, but I'm familiar with the choral part, and it certainly was at the beginning of the Jackass movie. :)