Which has more acts, Die Walküre or La fille du régiment?
Die Walküre: Die Walküre (The Valkyrie), WWV 86B, is a music drama in three acts by Richard Wagner with a German libretto by the composer. La fille du régiment: La fille du régiment ("The Daughter of the Regiment") is an opéra comique in two acts by Gaetano Donizetti, set to a French libretto by Jules-Henri Vernoy de Saint-Georges and Jean-François Bayard.
Die Walküre