Question: What opera that starred William Martin was based on a play written by William Shakespeare?
Sentence (from "Roméo et Juliette"): Roméo et Juliette ("Romeo and Juliet") is an opera in five acts by Charles Gounod to a French libretto by Jules Barbier and Michel Carré, based on "The Tragedy of Romeo and Juliet" by William Shakespeare.
Relevant evidence: Yes