The Grim Adventures of Invader Zim

is an American animated science fiction-supernatural-comedy television film serving as a crossover between and , being co-directed by and Maxwell Atoms. It is produced by Cartoon Network Studios, Warner Bros. Animation and Nickelodeon Animation Studios and it will premiere on on March-August TBDth, 2021.
==Plot==
===Summary===
As another tentative to take over the Earth, Zim discovers a portal that allows him to find another dimension where an entity known for working for two young children is tired of its life and has TBD.
===Full plot===
==Voice cast==
*Richard Steven Horvitz as:
**Zim, a megalomaniacal and arrogant Irken invader who has found TBD.
**Billy, TBD
**Harold, TBD
* as GIR, TBD
*Grey Griffin as Mandy, TBD
*Greg Eagles as the Grim Reaper, TBD
*Andy Berman as Dib Membrane, TBD
*Melissa Fahn as Gaz Membrane, TBD
*Vanessa Marshall as Irwin, TBD
*Rodger Bumpass as Prof. Membrane, TBD
*Kevin McDonald and Wally Wingert and Almighty Tallest Purple and Red, TBD
*Jennifer Hale as Gladys, TBD
*Diedrich Bader as Hoss Delgado, TBD
*Candi Milo as Ms. Bitters, TBD
*Olivia d'Abo as Tak, TBD
*Phil LaMarr as Count Dracula, TBD
*C.H. Greenblatt as Fred Fredburger, TBD
==Release==
===Critical reception===
==Transcript==
==Quotes==
*
==Trivia==
*This is the third crossover between a Warner Bros. and a Nickelodeon property, with the first and second being Velocity and Samurai Jack: Demon's Edge and Batman vs. Teenage Mutant Ninja Turtles.
Category:American films
Category:American animated films
Category:2021 films
Category:Hand-drawn animated films
Category:Traditional animated
Category:Nickelodeon
Category:Nickelodeon Animation Studio
Category:Warner Bros.
Category:Warner Bros. Animation
Category:Cartoon Network
Category:Cartoon Network Studios
Category:Invader Zim
Category:The Grim Adventures of Billy & Mandy
Category:CBS All Access
Category:TV-Y7-FV
Category:2021
Category:Coolot's ideas
Category:DonaldoC1997's ideas
Category:GreenGrassCreeper34's ideas