The Virtual Reality scene originally contained New York City in flames during the Zim's sales pitch. Due to the 9/11 attacks, the episode was pulled from it's original airdate so a new scene could be animated in it's place. However due to a mishap, when the episode first premiered, it had the New York sequence instead of the new scene.
On the episode "FBI Warning of Doom", GIR starts over his movie around the time Zim enters and sees the FBI Warning which appears on most movies at the beginning. "WARNING OF DOOM! Federal law provides severe civil and criminal priorities for the Unauthorized reproduction, distribution, exhibition of copyrighted motion pictures in any medium (Title 17, United states code, Section 201 and 506.) This Federal Bureau of investigation investigates allegations of criminal copyright infringement. They will hunt you down like the dirty monkey you are and force you to wear a moose skin and ride a greased piggy while singing folk tunes. They're forcing me to ride the piggy as I write this. The Piggy is Smelly!!"
The Grout children were originally supposed to be eating cockroaches instead of cocktail weenies.
The credits listed in the movie "Intestines of War" are:
- The General (Ress Stevel)
- Sarge (Steve Ressel)
- Private Poop (Himself)
- Nurse (J. Duffi)
- Private Hack (Kriz Graf)
- Colonel Colon (Ion)
- The President (Hed Cheez)
- Captain Dook (Gurge)
Poop Dawg was originally going to be Poopsy the Clown.