A movie’s editor doesn’t usually get a lot of credit. Directors, actors and even costume designers get higher billing. But editing is key to setting the tone of a film. Don’t believe me? Check out these recut movie trailers.

These trailers completely change two well-known movies. The first takes The Shining and recasts it as a family-friendly comedy. The second makes a horror movie out of the Disney classic Mary Poppins. These are pretty funny. And they show the power of editing.