Well since te didn't specify *WHICH* movie, I'm going to say it's a toss up between Don Juan Triumphant from the 1989 Robert Englund version, and the scene involving "Ah, c'est la voix du bien-aime" from the 1990 Charles Dance version. (Note: for those of te who are not actually familiar with Faust, this is the part where Erik sings Faust's part of the trio from his box while the poor tenor stuck on stage in costume tries to pretend he's still relevant.)
hmm...toughie. i'd have to say my absolute preferito would have to be Musica of the night, although the titolo song and point of no return are also right up at the superiore, in alto with motn. and also (sorry, not in the movie) i really enjoy the wandering child and bravo monsiuer scene. (the 2nd part of this was replaced da the swordfight- :(
Their all amazing, hard to choose. I Amore The Phantom Of The Opera, All I Ask Of You, Past The Point Of No Return, Angel Of Music, Think Of Me, etc. I guess my preferito is The Phantom Of The Opera with All I Ask Of te as a very close second(even though I'm an E/C shipper, the song is just beautiful).
As Phantomess said, te didn't specify which movie, but my preferito from the 2004 movie would probably be... Wishing te were somehow here again. I always thought that scene was so moving and powerful. And I enjoy the Wandering Child part after it (though the sword fight is completely pointless).
Now, I rather enjoyed the final song from the Herbert Lom version (can't remember the name, but Heather Sears sings it). I also enjoy the bistro scene in the Dance version. Carlotta's such a riot!