Résumé: What happens when the world’s premiere opera company decides to undertake the ultimate operatic challenge—a new production of Richard Wagner’s monumental four-part saga The Ring of the Nibelung? This engrossing film by Susan Froemke and Bob Eisenhardt follows the creation of what General Manager Peter Gelb called “the most ambitious production the Met has ever attempted.” And in true theatrical tradition the tale of getting Robert Lepage’s epic production on stage offers as much nail-biting drama as...