Ooooh I like this piece. And no...don't listen to what anyone says. It was not in The Omen.
I once harboured a mad urge to try and play the whole of Carmina Burana but that was probably being a bit over ambitious. Although O Fortuna opens the composition in a hugely dramatic way, it's actually fairly simple to play, as long as you keep your wits about you.
Although performed by the 'dead people singing' sound of the Mellotron choir, I can swear I can hear them enunciate the words 'O Fortuna' at the start of this recording. Maybe I am losing it.