Tim Burton's The Nightmare Before Christmas started as a poem Tim Burton wrote while working as an animator at Disney in the early '80s. The Nightmare Before Christmas then became the first full-length stop-motion animated film ever created. The Nightmare Before Christmas follows Jack Skellington, the Pumpkin King of Halloween Town as he decides to spread Christmas joy to the world. But his well-meaning mission unwittingly puts Santa Claus in jeopardy and creates a nightmare for all good little girls and boys every where!