The Lost Rocketboy is a fan-fiction thing to make. It would've appeared on the Disney print of Jimmy Neutron: Boy Genius.
The cast and crew behind the Jimmy Neutron: Boy Genius movie discuss the "Runaway Rocketboy" pilot that never came to be due to KaBlam! being cancelled, and was ultimately considered by many fans of the movie to be 'lost'.
- (Fades to John A. Davis, who is talking about the cancelled Jimmy Neutron pilot, "Runaway Rocketboy" while the "Parents" score is playing in the background)
- John A. Davis: I've seen...
- (Textbox: John A. Davis - Director, Writer)
- John A. Davis: ...many pilots of famous TV shows before, but there was that one pilot that got the boot because of one show's cancellation, and that would have to be "Runaway Rocketboy".
- (Jimmy Neutron Theme (TV Version) plays in the background.)
- (Monatage of clips from the "Runaway Rocketboy" pilot plays.)