Watch The Hidden Führer: Debating the Enigma of Hitler's Sexuality (2004) : Full Movie Online Free In September 2001, respected German historian Lothar Machtan dropped a bombshell on the world of Hitler studies: Hitler was secretly homosexual. His highly acclaimed and explosive book "The Hidden Hitler" ignited a storm of controversy. With information from the bestselling book, award-winning filmmakers Fenton Bailey, Randy Barbato and Gabriel Rotello explore areas of the Führer's private life.