Opera once coveted the realism of film. Nowadays, film is looking to opera for its ability to create fantasy. “Opera once recruited film directors because it envied the truth vouchsafed by the frank eye of the camera. Nowadays, opera delights in illusion, which is why it can offer characters in film an escape from their grim, grounded lives: hence Cher’s trip to the Met’s Bohème in Moonstruck, or Tom Hanks’s duets with Callas in Philadelphia.”