“Gérard Mortier, the director of the Paris National Opera, was taking a risk when he invited the Serb film director Emir Kusturica to create a new work here. Put simply, Mr. Mortier, who will take over as general manager and artistic director of the New York City Opera in 2009, was also asking a traditionally conservative audience to embrace a so-called Gypsy punk opera…. Well, the gamble appears to have paid off….”