I caught a few minutes of one of those Crime Scene Dramas on TV*, and in it an opera was being staged--Lucia Di Lammermoor.

I only recognized it because I knew the piece being performed from The Fifth Element. (It's the piece the Diva sings).

*Don't remember which one.  I didn't watch the end to see who murdered Alice Krige's daughter--Julian Sands was playing the arrogant conductor, so of course he was the murderer...