Trivia: This is the only movie in the series besides Terminator 3 where Kyle Reese is not seen or mentioned. Coincidentally, both T3 and Dark Fate feature a Terminator that killed John Connor, albeit in different timelines.
Trivia: After the Justice League go into the Stairportal, it cuts to giant words saying 5 Years Later. This is a joke and jab at the same kind of 5 years later cut in Avengers: Endgame.
Trivia: When Kim throws a henchman over the railings onto Professor Dementor, the henchman lets out a Wilhelm scream.
Trivia: References to the game series include: Weapons: the BFG 9000, shotgun and chainsaw Characters: John Carmack (co-creator and former lead programmer of the series), Malcolm Betruger (Doom 3's antagonist) and the ship's AI Daisy (the name of protagonist Doomguy's pet rabbit) Enemies: zombified humans, the fireball hurling creatures (called imps in the game) Quotes: "I'm too young to die", "ultra nightmare" (the easiest and hardest difficulty settings respectively) Additionally, the name William J Blazkowicz is a reference to William Joseph "B. J." Blazkowicz, the protagonist of the Wolfenstein series starting with Wolfenstein 3D, the game that Id Software created prior to releasing the first Doom game.
Trivia: Peyton List voices Poison Ivy. In the TV show "Gotham", List plays Ivy Peppers, who becomes Poison Ivy.
Trivia: Arnold Schwarzenegger's "performance" in this movie "merited" a nomination in the 2021 Razzies (Raspberry Awards) for WORST supporting actor, but he lost [or would that be "won"?] to Rudy Giuliani! Arnold's nomination had some good company: Chevy Chase, Shia LaBeouf, and Bruce Willis. Bruce was nominated for THREE of his movies - Breach, Hard Kill, and Survive the Night.