Everybody Does It is a 1949 comedy film starring Paul Douglas, Linda Darnell and Celeste Holm.In the film, a businessman's wife tries to become an opera star, failing miserably due to her lack of talent. When it turns out that her totally untrained husband is found to have a marvelous singing voice and goes on tour under an assumed name, his wife is livid.Darnell sings long stretches of an imaginary opera, L'Amore di Fatima. The music for it was written by Mario Castelnuovo-Tedesco.