Natalie Dessay and Juan Diego Flórez star in Mary Zimmerman's dreamy new production of Bellini's La Sonnambula, conducted by Evelino Pidò. THE MET: LIVE IN HD uses state-of-the-art technology to capture the onstage action at the nation’s premiere opera house. Behind-the-scenes features and live interviews with cast and crew offer an unprecedented look at what goes into the staging of an opera.