2. Neighbours (1952)
Not all stop-motion requires that the actors be inanimate objects. The 1952 Canadian antiwar short, "Neighbours," uses a technique known as pixelation, in which live actors pose for each frame, and then change their pose slightly before the next frame, turning the actor into a kind of living puppet.
In this film, two neighbors live peacefully side by side, until a flower blooms between them. The two men fight to the death over the flower.
"Neighbours" won both a Canadian Film Award and an Academy Award,