In 1938, Erich Wolfgang Korngold was conducting opera in Austria when he was asked by Warner Bros. to return to Hollywood and compose a score for "The Adventures of Robin Hood". The film is considered the finest of its kind, with a continuous series of romantic and adventurous sequences propelled by Korngold's dynamic score. Music historian Laurence E. MacDonald notes that there were many factors which made the film a success, including its cast, its Technicolor photography, and fast-paced direction by Michael Curtiz, but "most of all, there is Korngold's glorious music". And film historian Rudy Behlmer describes Korngold's contribution to this and his other films: