Fifth Column Mouse (1943)

Fritz Lang has created this rather fun little tale of some mice who are prepared to try and reach an accord with their ever hungry cat. They will feed him loads of cheese and act as his minions, and he won't keep trying to eat them. There is dialogue here, and a bit of military-style rhyme as the mice deliberate what to do next when it becomes clear that the actually quite menacing cat has no intention of sticking to his side of the bargain. The ending gives extra meaning to the "worm that turned" and has some fun with a shaver, too. The adequate animation is quite quickly paced with just a hint of wartime spirit to it.