Charlie Chaplin lampooning Hitler’s bombast and fragility in “The Great Dictator” (1940) marked one of film comedy’s all-time “truth to power” moments. But 80 years after WWII, how best to laugh at fascists when they seldom don the brownshirt? With the release of Taika Waititi’s “Jojo Rabbit”—a would-be charming comedy about a Hitler youth whose imaginary friend is der Führer—Chance and Noah ask themselves why, how, and when skewered Nazis are funny. After reviewing “Jojo,” Chance and Noah duck back to “The Producers” (1967) and “Top Secret!” (1984) to examine how Nazis became a source of irony and camp for filmmakers like Mel Brooks and the ZAZ trio. As always—down with Hitler; all the way down.