Hey Arnold!: The Belly Movie is a great big blast movie release for 2021.

Hey Arnold! The Belly Movie poster


There's a reason about big bellies, kids. Don't try this at home.


Arnold and his friends are making their bellies full of air and water.  The new adventure begins in African Savannah.  Arnold and his friends went for a walk with their big bellies.  But of course, their bellies grew bigger and bigger from the lions, elephants, warthogs, meerkats, zebras, water buffalos, hyenas, wildebeests, flamingos, parrots, lovebirds, ostriches, leopards, crocodiles, monkeys, baboons, gazelles, aardvarks, ten African black ducks, and lots of wild animals.  Unfortunately at the end of the movie, it was Grandpa Phil’s fault.  Especially Grandma Pookie, Arnold’s parents, and his neighbors.  They started pleading and begging.  They admitted that Grandpa , Grandma, Arnold’s parents, and his neighbors should be ashamed of themselves for playing a prank on Arnold and his friends.  Arnold accepted their apology and Arnold apologized to his friends.  Then, Arnold and his friends started to cry, creating a flood of tears, and making their bellies shrink.  And now, they’re friends again for a brand new day.

The Characters In The Movie


Rated PG


Bad Humor

Emotional Thematic Elements

Some Action

Brief Language



  • Jason Marsden as Arnold, Wolfgang (cameo), Ludwig (cameo), Teenage #1, Teenage #2, Teenage #3, Kid #1, Male News Reporter #1, & Additional Voices
  • Cree Summer as Gerald, Grandma Pookie, Arnold's Mom, Big Patty (cameo), Explorer Sally, Koo-Koo African Lady, Female News Reporter #1, & Additional Voices
  • Francesca Marie Smith as Helga, Sheena (cameo), & Campfire Lass (cameo)
  • Anndi McAfee as Phoebe, Lila (cameo), & Kid #2
  • Jet Jurgensmeyer as Stinky
  • Justin Shenkarow as Harold, Joey (cameo), & Iggy (cameo)
  • Olivia Hack as Rhonda
  • Gavin Lewis as Eugene, Peapod Kid (cameo), & Kid #3
  • Laya Hayes as Nadine & Wonderful Debbie
  • Aiden Lewandowski as Sid, Chocolate Boy (cameo), & Kid #4
  • Nicholas Cantu as Curly
  • Nika Futterman as Olga & Female News Reporter #2
  • Bill Farmer as Grandpa Phil & Explorer Sam
  • Kevin Clash as Ernie
  • Eric Jacobson as Oskar
  • Jim Carrey as Mr. Hyunh, Arnold's Dad, Mr. Simmons
  • Craig Bartlett as Abner & Brainey
  • Frank Welker as Arrow's Tigers & Bigfoot
  • Jim Cummings as The Wise Old African Man (in the style of Winnie the Pooh), Koo-Koo African Man (in the style of Tigger), Lions, Elephants, Warthogs, Meerkats, Zebras, Water Buffalos, Hyenas, Wildebeests, Flamingos, Parrots, Lovebirds, Ostriches, Leopards, Crocodiles, Monkeys, Baboons, Gazelles, Aardvarks, African Black Duck #10, Animals, & Additional Voices
  • Ernie Sabella as Boomerang Man & Sloppy Man
  • Nathan Lane as Captain In The Big Boat & Male News Reporter #2
  • Brian Doyle-Murray as The Evil Jungle Boogie Man & Parrots
  • Gilbert Gottfried as The Evil Jungle Boogie Man's Talking Parrot & Parrots
  • Clarence Nash (archive record) & Tony Anselmo as African Black Duck #1
  • Daniel Ross as African Black Duck #2
  • Tom Hanks as African Black Duck #3, Animals & Additional Voices
  • Jimmy Weldon as African Black Duck #4
  • Sam Kwasman as African Black Duck #5
  • Steven Blum as African Black Duck #6
  • Maurice LaMarche as African Black Duck #7
  • Charlie Adler as African Black Duck #8
  • Fred Newman as African Black Duck #9, Animals, & Additional Voices
  • Tom Kenny as SpongeBob (cameo) & Gary (cameo)
  • Bill Fagerbakke as Patrick (cameo)
  • Rodger Bumpass as Squidward (cameo)
  • Clancy Brown as Mr. Krabs (cameo)
  • Mr. Lawrence as Plankton (cameo) & Additional Voices
  • Additional Voices: Rob Paulsen, Jeff Bennett, April Winchell, Charlie Adler, Wallace Shawn, Tom Kenny, Charlie Adler, Kevin Clash, Eric Jacobson, Jim Carrey, Justin Shenkarow, Maurice LaMarche, John Goodman, Bill Farmer, Quinton Flynn, Bill Murray, & Tony Anselmo

Music Composer

  • Jim Lang
  • Roger Nill


  • Pumpin' And Blowin' (Kristy McNichol)
  • The Lion Sleeps Tonight (Jimmy Cliff)
  • Lala (from The Rhythm Of The Pride Lands)


Trailer begins with the Paramount Pictures logo showing along with Nickelodeon Movies.

Helga: Hey, Arnold!

Arnold: Huh?

Helga: Move your belly, you basketball head!

Arnold's big belly bounces and jiggles.

Arnold: Well, Arnold. You have a big day.

Film's logo appears on the screen.

Hey Arnold!: The Belly Movie

Coming December 2021

End of the trailer.


Community content is available under CC-BY-SA unless otherwise noted.