
Trivia: The fortress of solitude is a replica from Richard Donner's Superman film.

Trivia: Spoilers: Among the video-tapes seen next to the TV after the opening credits are "C.H.U.D." and "The Goonies." This is quite relevant to the plot, in which it is revealed that the doppelgangers come from beneath the ground in a series of tunnels that used to be run by the government. "C.H.U.D." is about mutant creatures that live underground and have began to rise up and attack, like the doppelgangers, and "Goonies" takes place largely in underground tunnels and caverns, much like the film's climax.

Trivia: The wood-chipper Tree leaps into is labeled "Biff's Tree Removal." This is a reference to the "Back to the Future" film series, which features a prominent character named Biff. The "Back to the Future" movies were one of the inspirations for the film.

Trivia: This film shares a lot of similarities with the 2007 film Superbad. In fact, Beanie Feldstein, who plays Molly, is the sister of Jonah Hill, who plays Seth in Superbad.

Trivia: When Kim throws a henchman over the railings onto Professor Dementor, the henchman lets out a Wilhelm scream.

Trivia: Seeing the "In God We Trust" sign on the classroom wall of a public school might lead some to question its Constitutionality, but it has been the National motto since the 1950s. Post-9/11, some states started REQUIRING the motto be posted in public places, including public schools beginning the 2019-20 academic year. (00:06:20)

Trivia: The first "Critters" film to be rated R, as well as the first film in the series to not feature actors Don Keith Opper and Terrance Mann.

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: After the police arrived, Hayley told Sarah, "It is not my fault my parents put a LoJack in my car." LoJack is a high-tech GPS system and theft recovery device that can pinpoint a car's exact location. LoJack ended sales in the U.S. in 2021 (will not accept any new orders but will continue to service existing connected vehicles). (00:41:50)

Trivia: The scene where Devon Sawa talks about Limp Bizkit was not scripted. He was doing some improv and did a whole bit about how much he likes the band as a joke and a nod to director Fred Durst, who is the lead singer of the band. Sawa and Durst didn't intend for the take to be used in the finished film. However, when it was picked up for distribution, the studio had the film slightly recut and decided to use the take, slightly embarrassing the two.

Trivia: In the Ford Pinto case, executives did a cost/benefit analysis comparing the amount to recall 12.5 million cars/trucks at $11 each vs not making the recall and essentially letting people die in fiery crashes or suffer severe burn injuries. Each fatality was estimated to cost $200,000 - the price of letting people die in fiery crashes from the Pinto's fuel tank exploding upon rear-end collisions. Interestingly, it was the National Highway Safety Admin that provided the figure $200,725 in 1972.

Trivia: The film features a cameo from Frank the pug, who appeared in the first two films, but was absent from "Men in Black 3." Oddly enough, despite only appearing in the film for a few seconds, Frank appears quite prominently on several posters and even on the DVD cover art for the film. (The same is true for the "worm guys," who also appear on posters and the DVD cover despite only having a brief cameo in the film).

Trivia: Peyton List voices Poison Ivy. In the TV show "Gotham", List plays Ivy Peppers, who becomes Poison Ivy.

Trivia: The filmmakers had originally planned to shoot the film at Banff National Park, but the direction of the park did not like the fact that one of the bad guys was an Indigenous gang boss, and therefore the filming permit was revoked.

Trivia: The cuckoo bird was used at the beginning of the movie to point out what a parasitic bird does - secretly lays eggs in the nest of another bird species and leaves them for the different species to raise as their own. Another "brood parasite" that many people might be more familiar with is the Brown-headed cowbird. If all goes as intended, the different species, such as a Cardinal, will take care of the eggs until they hatch and continue feeding fledgings. Sometimes, "alien" eggs are evicted.