The movie cut between the performance, and a rather interesting fight scene during the song. What made it better is that the tempo and beat of the song was reflected in the fight, even concluding at the same time.
I have many favorite music moments from the Lord of the Rings trilogy!!! The part when Gandalf fell, Gandalf charging with Rohirrum (sp?), March of the Ents, and there are many awesome music moments in The Return of the King that both gives me chills and brings tears to my eyes!
Akula, I like the Diva song/fight from "The 5th Element" too!