Trivia: When composer Éric Serra showed Inva Mula, the Albanian soprano who was going to sing the Diva Dance, the sheet music for that part, apparently she laughed and said that it was impossible for the human voice to switch from high to low notes that quickly. She got her way: The part that ended up in the film is not a single piece of audio, rather it's several pieces stitched meticulously together.
Trivia: In the Gattaca world, people like Vincent who fake their genetic profile are known as borrowed ladders. This is a reference to the double helix, or ladder shape, of DNA.
Trivia: Sigourney Weaver actually makes the basketball shot. Even though the ball is out of shot for a second, she made the shot with no assistance. The shot cuts quickly because Ron Perlman dropped character in celebration, which can be seen in deleted scenes online.
Trivia: John Woo fought to keep the slash in the title, so moviegoers wouldn't think it was a film about hockey.
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: The view that people acquired citizenship and the right to vote through military service reflected the views of "Starship Troopers" author Robert Heinlein. His views were influenced by his years in military service during World War II, and what he saw as the supposed "laziness" of civilians.
Trivia: All the characters in the movie are named after famous prisons around the world - Holloway, Wren, Leavenworth, San Quentin, etc. The characters match the prison types too - Alderson never meets the group, and isolation is the major form of punishment at Alderson Prison in West Virginia. Dr. Holloway is a female doctor, and Holloway Prison is a women's prison in England, Kazan is autistic, and Kazan Prison is Russia is a "disorganized" prison, etc.
Trivia: The voiceover radio broadcast at the end of the movie is spoken by Roger Moore - the original Saint from the TV series.
Trivia: Many of the corridors in the Event Horizon are coffin shaped - perhaps foreshadowing the fact that it is a "death" ship?
Trivia: Filmmakers George Miller and Francis Ford Coppola both sued Warner Bros. over Contact. George Miller sued for breach of contract (as he was the original director before being fired and replaced by Robert Zemeckis), while Coppola sued because he claimed that he and Carl Sagan (the writer of Contact) had already developed the premise for a TV show in the 1970's which was never produced, before Sagan later used the idea for Contact in 1985. Both suits failed - Miller's firing was within contract and perfectly reasonable, and Coppola was dismissed (twice) because he had taken far too long to sue the company (if he sued when Sagan began working in the 80's, he may have won, but he waited until after the film's release in 1997 to sue).
Trivia: When they are showing the magazines with Orgazmo on the front for the film's publicity, on the front of the GQ magazine, it shows Trey Parker and Matt Stone as being article writers for the magazine.
Trivia: The mars shuttle is a space shuttle type craft. It has different wings which are more curved and also smaller. When the shuttle is launched the moviemakers have simply used a genuine space-shuttle scene, where the shuttle has completely different wings.
Trivia: The pony girl was Costner's daughter. The boy of the letter (Postman's horse stunt) was Costner's son.
Trivia: In the original ending as intended, the "King" of the Judas Breed wouldn't be killed by the train, but would rather in silhouette form back into a human "mimic." He'd step out of the shadows to reveal the perfect image of a nude human male. He would then point at Susan and in English tell her to "leave", implying that the Judas Breed had reached such a stage in their evolution to be able to perfectly mimic human beings, even down to speech patterns. This was in keeping with the original, much more apocalyptic tone of the story before script-changes forced by the producers.
Trivia: Due to the financial success of the previous two films, Disney originally intended for this to be a theatrical film. However, after their success with the direct-to-video animated sequels "The Return of Jafar" and "Aladdin and the King of Thieves," Disney decided to make this their first foray into a direct-to-video live-action sequel. Given it was gamble, this decision unfortunately resulted in the budget being lowered substantially in comparison to the previous two films.