Do both Simon Boccanegra and Le roi d'Ys have the same number of acts?
Simon Boccanegra Simon Boccanegra (] ) is an opera with a prologue and three acts by Giuseppe Verdi to an Italian libretto by Francesco Maria Piave, based on the play "Simón Bocanegra" (1843) by Antonio García Gutiérrez, whose play "El trovador" had been the basis for Verdi's 1853 opera, "Il trovatore".
The Phantom (play) The Phantom is a two act melodrama written by Dion Boucicault. It was originally titled "The Vampire" when it was first performed at the Princess's Theatre in London in 1852. Boucicault renamed it "The Phantom" when he went to the United States, where it opened in Philadelphia in 1856. The play tells the story of two different encounters with a mysterious phantom.