In 2010, the Umbilical Brothers announced that they had completed a script for a special-length episode titled "The Upside Down Movie", which would act as a proper finale for the series. The movie had been in development since 2008. Nickelodeon Australia provided funding for the movie's scriptwriting, but the project needed support from outside investors to start filming, which never occurred. As recently as March 2017, the Umbilical Brothers have stated that they are still interested in making the movie and are trying to find support for it.