Debate about how German filmmaker Leni Riefenstahl should be regarded has raged even after her death more than two decades ago at the age of 101. Now a new film has reignited it. Was the director of the masterful Triumph of the Will, which chronicled the Nazi Party’s 1934 rally in Nuremberg, and Olympia, which documented the 1936 Olympics in Berlin, a dedicated Hitler propagandist? Or was she, as she claimed for decades after World War II, just an artist hired by the Nazis to make films and knew nothing about the killing of Jews in concentration camps as it occurred? After going through 700 boxes of material from her estate to make the new documentary Riefenstahl, German filmmaker Andres Veiel has no doubt. “She was a Nazi, totally,” he said after arriving from Berlin for the German Film Festival.