Complex sentence: The film is a musical comedy starring Maurice Chevalier, Jeanette MacDonald, Genevieve Tobin and Charles Ruggles, about a married couple who find themselves attracted to other people.
Split into simpler sentences: The film is a musical comedy starring Maurice Chevalier, Jeanette MacDonald, Genevieve Tobin and Charles Ruggles. The story concerns a married couple who find themselves attracted to other people.