Jiří Trnka's "Pérák a SS" ("The Chimney Sweep") is one of the most unusual cartoons that I've ever seen. Set during the Nazi occupation of Czechoslovakia, a collaborator spies on his neighbors in a scene that reminded me of "Rear Window". The goose-stepping goons arrest several people, as well as some inanimate objects. But when a chimney sweep notices that he can bounce around on springs, he hatches a plan to free the prisoners...which also means that he plays a series of tricks on the Nazis.
It's well known that a number of WWII-era cartoons made Hitler and the Nazis look comical. Once it came out what they'd done to people, people decided that it was no longer acceptable to make the Nazis look funny. Nevertheless, the cartoons from that era have some really funny stuff, and that includes this one. I recommend it. I hope to eventually see Trnka's stop-motion cartoons.