A Night at the Opera is a 1935 American comedy film starring Groucho Marx, Chico Marx and Harpo Marx, and featuring Kitty Carlisle, Allan Jones, Margaret Dumont, Sig Ruman, and Walter Woolf King. It was the first film the Marx Brothers made for Metro-Goldwyn-Mayer after their departure from Paramount Pictures, and the first after Zeppo left the act.