Hey Arnold! The Movie

After the success of The Rugrats Movie (1998) and Rugrats in Paris (2000), Nickelodeon Movies came to an agreement with Hey Arnold! (1996) creator Craig Bartlett for an Arnold theatrical film, as well as a television movie. The original plan was for the theatrical film to be about Arnold searching for his parents, titled The Jungle Movie, while the television movie, originally titled "Arnold Saves the Neighborhood", was about Arnold saving his neighborhood from being torn down. Problems with the script kept the theatrical movie on hold for several years, and Nickelodeon Network, wanting an Arnold movie in theaters before the show lost its popularity, had "Arnold Saves the Neighborhood" converted into this film. However, a poor showing at the box-office, along with Craig Bartlett leaving Nickelodeon Animation Studios for Cartoon Network Studios, caused The Jungle Movie to be put on the shelf indefinitely. However, the show's cult following convinced Nickelodeon to announce on November 23, 2015 that they have green-lit The Jungle Movie. Bartlett returned as a writer and executive producer, with many of the original cast reprising their respective roles. Hey Arnold: The Jungle Movie (2017) premiered as a 2-hour long T.V. movie on November 24, 2017, concluding the series.

In one scene Grandpa packs up all of Arnold's stuff, but in the scene when Arnold and Gerald have a sleepover all of Arnold's stuff is suddenly back in his room.