Trivia: In many of the stunt car scenes you can see the actors apparently driving. The producers used British RHD cars and fitted phoney steering wheels on the passenger sides to make it look as if the stars were really driving.
Trivia: This movie set the record for most bullets fired in an American film.
Trivia: Temuera Morrison and Cliff Curtis are speaking Maori in their roles as pirates. However they didn't know how to say the complex lines they were supposed to (about gold and pirates, etc), so they just ad-libbed random everyday stuff such as what they were cooking for dinner. (From Temuera's biography "Temuera Morrison: From Haka to Hollywood").
Trivia: Robert Downey Jr. did not find making this film to be an enjoyable experience, and has referred to it as "possibly the worst action movie of all time."
Trivia: The first of director Stephen Sommers' films to co-star Kevin J. O'Connor. Sommers and O'Connor became friends, and Sommers has cast him repeatedly, giving him supporting roles in the films "The Mummy", "Van Helsing" and "G.I. Joe: The Rise of Cobra."
Trivia: While Mr. Freeze is at Shaugnessy's, when Shaka smacks Dick across the room, he ends up flat on his back, and in the close-up when Dick raises his head, the buttons on his vest switch sides momentarily. Then the buttons revert back (noted in trivia because it's better when clicked through slowly). (00:24:25)