“For the first time in nearly two decades, since the 1987 ‘Moonstruck’ and its rhapsodic scene from ‘La Bohème,’ a movie is being filmed at the Metropolitan Opera. The rarity is a result of the Met’s busy schedule as well as of the general absence of opera from movies and most of popular culture. But the filming is emblematic of the Met’s future reign, in the person of Peter Gelb, who made his mark in the classical recording industry partly with crossover projects and movie soundtracks.”