Moulin Rouge.

A singer marries a famous composer, and after a while she gets the itch to go back on the stage. However, her husband won't let her. When she hears that a popular French singer named "Raquel" is coming to New York, she decides to go to Raquel with a plan--unbeknownst to her husband, "Raquel" is actually her sister, and her plan is for them to switch places so she can fulfill her dream of going back on the stage. However, things don't go quite as planned.