(Just dig those costumes!)
Tales of Hoffman also has my favorite male aria, although I have to admit this short song probably doesn't appear on any opera "expert's" top-10 list. Oh well. I tried to find the movie's version, which is conveniently in English, but no luck, so here's some random guy singing an English version of Scintille, diamant:
...I might have to go watch this movie now. Last time I tried with Sean he fell asleep halfway through the first 'act.' Lame.