The Muppets' Haunted House
From Muppet Wiki
The Muppets' Haunted House (aka "The Muppets' Haunted Hotel" and "Muppet Haunted Movie") had been mentioned in several press kits released by The Jim Henson Company during the 1990s, spending that time in development as a potential feature film.
As early as 1991, Brian Henson mentioned to TV Guide that a special was being developed for Halloween. By 1998, a script was written by Dan Milano, now titled "The Muppets' Haunted Hotel."
Some press reports cited the film was slated for a Fall 2000 release, but a 2001 press junket meant to highlight company projects, still mentioned the film to be in development as "Muppet Haunted Movie."
To date, the film has yet to move forward in production.
