"The Skeleton Dance" 1929

The clock strikes midnight, the bats fly from the belfry, a dog howls at the full moon, and two black cats fight in the cemetery: a perfect time for four skeletons to come out and dance a bit.

The Skeleton Dance is a 1929 Silly Symphony animated short subject produced and directed by Walt Disney and animated by Ub Iwerks. In the film, four human skeletons dance and make music around a spooky graveyard—a modern film example of medieval European "danse macabre" imagery.