Volker Schlondorff's The Tin Drum (1979), based on the novel by Gunter Grass, has a complicated relationship with Nazism. On the one hand there's Oscar, our main character, a boy who refuses to grow up, who wants society to march to his drum, and a representative of the zeitgeist of the German people both in the 30's and the 40's even though that zeitgeist changed dramatically. On the other hand are lines like the one alluded to above: "There was once a credulous people who believed in Santa Claus. But Santa Claus was really the gas man!" A warning against any populist, really.