The Very Big Monster Show (2004)

The Creepyville Horror!
The classic old monsters of Creepyville are feeling their age. Media-savvy kids have turned their back on vampires, mummies, and sea creatures in favor of newer, more gruesome characters–except for Theo, a boy who still believes in their ability to frighten. If only he can convince the old monsters themselves… Creepy, all-ages thrills from Steve Niles and Butch Adams.