Jimmy Neutron 2: The Search for Carl

Jimmy Neutron 2: The Search for Carl was a planned sequel to the 2001 film Jimmy Neutron: Boy Genius, the plot was written by writer Kate Boutilier.

Plot
Unknown, but it was described that the sequel would be made on the same budget as the first, but with a new batch of inventions and adventures in Jimmy's town of Retroville.

Why It Was Cancelled

 * 1) The film was cancelled due to the failure of Rugrats Go Wild.
 * 2) The film was cancelled because the writers could not agree on a story and Alcorn later stated in an interview that "once the TV series came out, there wasn't a lot of incentive to make a movie when fans could simply watch Jimmy Neutron for free at home".

Results

 * 1) Jimmy Neutron is still a show, and the film is a standalone film.
 * 2) The plot for the sequel was used in the Game Boy Advance game, Jimmy Neutron vs. Jimmy Negatron.
 * 3) O Entertainment made the movie, Barnyard in 2006.