One interesting use of opera in film was the opening scene of Martin
Scorses's version of Edith Wharton's "House of Mirth".  It opened with
a scene from Gounod's "Faust" being performed on stage; shortly later,
the focus moved to audience members viewing the performance, including
the lady whose "journey to hell" would begin forthwith.

Laurence Glavin
Methuen, MA