Tim Burton's The Nightmare Before Christmas is quite possibly the creepiest children's movie of all time. Even now, at 30-years-old, the movie makes my skin crawl when it ends up on the television, but can you expect anything less from the creative mind of Tim Burton?
But what you may not know is that Tim Burton based the movie off a poem, he wrote while working for Disney in the early 1980s. What ended up being a three-page poem was inspired by classic children's Christmas shows: Rudolph the Red-Nosed Reindeer and How the Grinch Stole Christmas. Burton also drew inspiration from the poem A Visit From St. Nicholas.
I am going to guess that Burton got some of the creepier ideas after watching How the Grinch Stole Christmas, because otherwise I question how someone could conceive such a horrifying concept of Christmas.