Mary Poppins is a 1964 American musical film produced by Walt Disney, based on the Mary Poppins series of children's books written by P. L. Travers. In 2006, this film ranked #6 on the American Film Institute's list of best musicals. The first book was the main basis for the Walt Disney film Mary Poppins, a musical with mixed live action and animation premiered on August 27th, 1964. It was the Sherman Brothers, who composed the music and song score, and who were also involved in the picture's development, who suggested that the setting be changed from the 1930s to the Edwardian era. The multiple Academy Award-winning film is considered by many critics to be the best of Disney's live-action musicals and it made a major film star of Julie Andrews, who was making her movie acting debut after a successful stage career.