> Surely this holds the record for 'largest choir ever used in a film score.' How would one even go about recording that!? Stuff 'em all in a football stadium?

Good question! Powell actually spoke about this to Soundtrack.Net.

'We rented a soundstage - not a scoring stage, since we couldn't fit them in the scoring stage - one of the huge massive stages where they shot Superman Returns. It's a massive space, very empty, very echoey - it has a seven second echo. You just pile them in there, and hang some mikes above them, put some mikes in front of them, and in the back of the hall. And you record enough channels that you can make it sound whichever way you need it to sound, bigger or smaller, depending on how it's going to fit in. But we couldn't get 600-pairs of headphones, and obviously we were working to playback. So the problem was, we couldn't playback over speakers and record everybody since we wouldn't have separation, so the conductor had headphones, and he would just conduct and try to keep them in time, and we would cut it up a little bit when they were out of time.'