This Hey Arnold!: The Jungle Movie review contains spoilers. Hey Arnold! fans have had a lot of time (fifteen years, give or take) to imagine this film in their heads. They’ve seen the concept art.

Sitting down in Nickelodeon’s press suite at San Diego Comic-Con, various recognizable voices from series like Rugrats and Hey Arnold! echoing around the room, Craig Bartlett is in his happy place.

Hey Arnold! The Jungle Movie will tie up some of the classic Nickelodeon cartoon’s 13-year-old loose ends when it premieres this November. But the cast and creator told Polygon during an interview at ...