He directed his first feature film in 1929, "Applause", which was one of the early sound films. It was a landmark film owing to Mamoulian's innovative use of camera movement and sound, and these qualities were carried to his other films released in the 1930s. "Dr. Jekyll and Mr. Hyde" (1931) benefits from having been made before the Production Code came into full force, and is regularly considered the best version of Robert Louis Stevenson's tale. "Queen Christina" (1933) was the last film Greta Garbo made with John Gilbert, and it benefits from being made before the Production Code came into full force. The musical film "Love Me Tonight" was released in 1932.