Which opera has more acts, Faust or Mignon?
Faust (opera) Faust is a grand opera in five acts by Charles Gounod to a French libretto by Jules Barbier and Michel Carré from Carré's play "Faust et Marguerite", in turn loosely based on Johann Wolfgang von Goethe's "Faust, Part One". It debuted at the Théâtre Lyrique on the Boulevard du Temple in Paris on 19 March 1859, with influential sets designed by Charles-Antoine Cambon and Joseph Thierry, Jean Émile Daran, Édouard Desplechin, and Philippe Chaperon.
Ritter Blaubart Ritter Blaubart ("Knight Bluebeard") is a fairy-tale opera (German: "Märchenoper") in three acts by the Austrian composer Emil Nikolaus von Reznicek. Herbert Eulenberg wrote the German libretto, based on his own five-act play with the same title, which had been first performed unsuccessfully at the Lessing Theater in Berlin in 1906.