Trivia: Kevin Spacey had to record the scene where Prot eats a whole banana (skin and all) 27 times.
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: 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: 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: If you look closely with time-frame advance during the pigeon scene you will see a fish "flying" into a window instead of a pigeon. (00:08:35)
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: 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").
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: Vinnie Jones claimed he was offered a cameo role in this film reprising his role as Juggernaut from X-Men: The Last Stand, but turned it down as he did not like the process of having his costume put on.
Trivia: When Howard knocks the duck hunter out of his boat, the hunter lets out a "Wilhelm scream."
Trivia: The scene with Jill eating Wesker's sandwich and saying "It's Jill's sandwich now!" (although saying it quickly in such a way that you can't hear the "s" and it sounds more like "It's Jill sandwich now!") is a reference to an infamous moment in the original video game. In the game, Jill is almost crushed by a booby-trap, and the character Barry says she was "almost a Jill sandwich!" The poor dialogue and terrible delivery by the voice actor ended up making the moment a meme many years later.
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: During the making of this movie Christopher Reeve and Sidney J. Furie didn't get along at all and often clashed with each other.
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.