Trivia: Steven Spielberg saw this film when he was a child and was fascinated by the Martians. He later based E.T. from E.T. the Extra-Terrestrial (1982) on them.
Trivia: Never in Oscar Wilde's story was Dorian Gray invincible, as is depicted in the film. Nor did looking upon his picture kill him. Dorian regularly stood in front of the painting, observing the degradation of his soul. He was only killed when he tried to destroy the picture.
Trivia: The Spierig bros. went to their butcher and bought rotten chicken and pig guts to enhance the effects.
Trivia: Hammond doesn't appear in the second book (though he does in the second movie). This is because, in the book series, Hammond was killed in the first book. He slipped, broke his ankle and was fatally attacked by compies.
Trivia: In the end credits, an actor is credited as playing Young Ruafo. There are no scenes in the film which this character appears, this is a scene cut from the film, but they forgot to erase the credit. The explanation is that young Ruafo was filmed in the original Insurrection ending, before producers decided on a different (more action based) death for Ruafo and so had him burn on the exploding ship.
Trivia: When Billy is fighting evil Jimmy, he says "Shadow demon, you shall not pass." Look behind Billy. The actual Double Dragon arcade machine is behind him, which evil Jimmy then kicks. (01:17:40)
Trivia: A scene in which Sebastian brutally and graphically rapes his neighbor was filmed, but was mostly deleted as test-audiences felt it made Sebastian far too evil. And thus, the version of the scene in the theatrical cut only alludes to the idea without directly showing it. The original scene was reinstated in the director's cut released on DVD and Blu-Ray however.
Trivia: When Roy McBride is reviewing a top-secret message regarding his father and the LIMA mission, the message filename is "6EQUJ5," which is a very obscure easter egg in the movie. The filename 6EQUJ5 refers to the real-life "WOW Signal," a deep space radio signal received by the Big Ear radio telescope at Ohio State University in 1977. The alpha-numeric designation "6EQUJ5" was a printed readout of the signal's duration and intensity. This signal lasted 72 seconds and was 20 times stronger than background radio noise, causing a surprised astronomer to circle the printed 6EQUJ5 readout in red ink and make the handwritten notation "WOW!" in the margin. While the signal was an anomalous one-time event that was never repeated, and there is still no proof that 6EQUJ5 was alien in origin, it has stimulated debate about extraterrestrial radio signals for decades. Ironically, the movie "Ad Astra" concludes that there are no alien radio signals and that we really are alone in the universe.
Trivia: Jennifer Connelly voices the "suit lady", the AI in Spider-Man's suit. In real life she's married to Paul Bettany, who voiced Jarvis, the AI in Iron Man's suit, and who later played Vision.
Trivia: When Dwayne Johnson signs to George to calm him down, he says "it's me." The sign he makes on those words is for "Rock," a reference to his stage name "The Rock." (00:15:25)
Trivia: Reportedly, star Kevin Bacon was at a rough patch in his life during production and didn't understand the appeal of the film or the light-hearted comedic elements. (Even once breaking down in public and exclaiming in frustration "I'm in a movie about giant underground worms!") And thus, he chose to have no involvement in the sequels. It wasn't until some years later that he decided to re-visit the film and give it another chance after it became a massive cult-hit, and discovered that he actually really loved it. Bacon has since gone on record saying one of his dream projects would be to reprise his role of Val McKee in a future film.
Trivia: When Howard knocks the duck hunter out of his boat, the hunter lets out a "Wilhelm scream."
Trivia: The combat simulation the X-Men are running on their first appearance in the film features the dread Sentinel robots. Originally, these were meant to appear in the second movie already, but the idea was scrapped. The simulation also bears a close reference to the parallel comic storyline and later movie X-Men: Days of Future Past, where the Sentinels rebelled against humanity, killed most of Earth's superheroes and erected a totalitarian regime in the US.
Trivia: In the closeups of Goob on the baseball field, there are two billboard advertisements on the fence behind him - one is "Jungle Book" featuring Mowgli with Baloo, and the other is "Toy Story 2" featuring Woody, Jessie, and Bullseye.
Trivia: Jax says that Cole beat Eddy Tobias in a fight. This is a reference to the creators of Mortal Kombat, Ed Boon and John Tobias.
Trivia: Director Roland Emmerich was a massive fan of Spielberg's films. Particularly "Jurassic Park." Emmerich decided to model this film more around "Jurassic Park" than the original "Godzilla" series. (In particular the "Baby Godzilla" sequences, which features many callbacks and references to the raptor scenes from "Jurassic Park").