The divine wings.. question!

i just saw the movie "metal a headbangers journey" and i heard the melody and the same drums of "The divine wings of tragedy" (the intro after the orchestra)..
from which song symphony x take this part?
maybe black sabbath?
(sorry for my English)

I think it's "Am I Evil" by Diamond Head. http://www.youtube.com/watch?v=Gvza4x3O7Gk

Metallica did a cover of it.

The Holst original is obviously the inspiration behind it all, but the Symphony X version sounds more like the Diamond Head song. :p