The Happiest Millionaire is a 1967 musical film, based upon the true story of Philadelphia millionaire Anthony J. Drexel Biddle. The film received an Academy Award nomination for Costume Design by Bill Thomas. The musical song score is by Robert B. Sherman and Richard M. Sherman. The screenplay is by A.J. Carothers based on the play that was based on the book My Philadelphia Father by Cordelia Drexel Biddle. This was the last live-action musical comedy film produced by Walt Disney, who sadly died during its production.