Untitled Planet Sheen TV Movie

As a way to end Planet Sheen, the spin-off series of The Adventures of Jimmy Neutron, Nickelodeon decided to make a TV movie based on the series.

Plot
Jimmy and his friends find out that their pal Sheen is missing and go on a rescue mission to find him.

Why It Was Cancelled

 * 1) The budget to make the film was very high.
 * 2) Planet Sheen received a lot of negative reviews from critics, audiences, and fans of the Jimmy Neutron franchise, and it had low viewership.
 * 3) Steve Oedekerk and his company O Entertainment/Omation left Nickelodeon for good after the show ended, and the studio itself has become dormant since then.

Result

 * The film was permanently cancelled.
 * Planet Sheen ended abruptly with the episode Banana Quest.