Hey Arnold! The Jungle Movie (partially found production material of cancelled original adaptation of Nickelodeon animated series film; 2002)
From The Lost Media Wiki
Original poster for the film.
Status: Lost
Hey Arnold!: The Jungle Movie is an animated feature film based on the Nickelodeon animated series Hey Arnold! that was to be released in 2002. Nickelodeon intended to release this film as the theatrical Hey Arnold! movie, but decided to release Arnold Saves The Neighborhood instead. Nickelodeon was still interested in making the movie after the unsuccessful release of Arnold Saves The Neighborhood, but cancelled the project in 2004 after Craig Bartlet left Nickelodeon.
A fourty-second test clip of movie has been found, but it is unknown if any other footage had been made for the movie. Little other information has resurfaced online about the film since.