The idea for Jimmy Neutron was first created by Davis in the 1980s, in which he wrote a script for a short film titled Runaway Rocketboy and starring a prototype character for Jimmy named Johnny Quasar. After coming across the abandoned script several years later, Davis decided that it would be a good idea to revisit it and retool it as a computer animated short and potential TV series. A 40-second demo was animated using LightWave 3D and gained popularity at the 1995 SIGGRAPH convention where it was shown off, grabbing the attention of Oedekerk and leading DNA Productions to develop an extended TV Pilot. After a successful pitch to Nickelodeon, a 13-minute-long TV episode was developed, and Nickelodeon, impressed with both the character and the 3D technology, raised the possibility making both a TV series and a full-length feature film. Davis, in turn, suggested that the film be made first, so that the development team could create the assets at theatrical quality and reuse them in the TV series. Production officially began in early 2000, and was completed in roughly 24 months, with DNA Productions considerably raising its staff count and expanding its studio space. Animation was done entirely using commercial software, including Lightwave and project:messiah.