Alright, so this trailer is bullshit. But wouldn't it be so coooool if someone actually did it?
I like telling people that Charlie and the Chocolate Factory is the first haunted house/slasher movie I've ever seen. Willy Wonka is pretty fucking menacing, we never see the kids who disappear into the factory again, and every child still has a touch of trauma from the boating scene.
Images of corrupted childhood always gives root to interesting horror. Enjoy!