Humphrey DeForest Bogart was an American screen actor whose performances in such iconic 1940s films noir as The Maltese Falcon, Casablanca, and The Big Sleep, earned him the legacy of cultural icon. In 1999, the American Film Institute ranked Bogart as the greatest male star in the history of American cinema. Over his career he received three Academy Award nominations for Best Actor, winning one.\nBogart began acting in 1921 after a hitch in the U.S. Navy in World War I and little success in various jobs in finance and the production side of the theater. Gradually he became a regular in Broadway shows in the 1920s and 1930s. When the stock market crash of 1929 reduced the demand for plays, Bogart turned to film. His first great success was as Duke Mantee in The Petrified Forest, and this led to a period of typecasting as a gangster with films such as Angels with Dirty Faces and B-movies like The Return of Doctor X.\nBogart's breakthrough as a leading man came in 1941, with High Sierra and The Maltese Falcon.