EW: Leni Riefenstahl's ''documentary'' ; — cinema's most notorious (and influential) propaganda film — presented the 1934 Nazi Party Congress in Nuremberg so slickly and skillfully that it helped solidify Adolf Hitler's control over the German citizenry. Frank Capra famously said the following regarding Triumph: ''[It] fired no gun, dropped no bombs, but as a psychological weapon aimed at destroying the will to resist, it was just as lethal.''