Did You Know?

Originally, the film included Jeff Goldblum and his character, Ian Malcolm. But a few days into filming, Goldblum injured his leg and decided to drop out, stating that his character wasn't that important to the script.

The establishing wide shot of the dig site was actual footage filmed in early summer 2001 of Jack Horner's excavation, which contained several large Tyrannosaurs and some Hadrosaurs.

The effects crew used 250 gallons of oatmeal to simulate Spinosaur droppings.

When the paleontologists enter the bar for dinner with the Kirby's, you can see a Jurassic Park pinball machine in the background.

A few of the action sequences are borrowed from left over ideas from the first two Jurassic Park films, some of which were in the original scripts and made it as far as being storyboarded before they were scrapped due to time and budget constraints. These scenes include the pteranodon and river boat sequences.

In the original shooting script, the character Udesky (Michael Jeter) was called Ordesky.

Shooting for the film began before the final script was completed.

The 25 September 2000 draft of the screenplay credits revisions to John August. He is not credited in the final film.

Near the end of the movie, when the Spinosaurus attacks Amanda Kirby (Téa Leoni) in the water and tries to grab her, the actress admits that she was injured by accident during those scenes when its claws would scratch her. When Leoni returned home from work one night and her husband David Duchovny saw the various slashes on her back she received during filming, he asked "At what point in this movie do they whip you?"

The computer-controlled "rapid prototyper" portrayed in the film is real technology, able to mechanically sculpt parts and objects in three dimensions using computerized drawings and scanned information. The machine in the film uses Laminated Object Manufacturing (LOM). Using one thin layer of bond paper and resin at a time, it carves away the unwanted material as each layer is added, until all the cross-sections have been built up into a solid replica of the original. The carving action of each layer creates a great deal of shavings and dust during the process, which you can see when Billy lifts the lid up to remove the finished model.

In the end scene of Jurassic Park, Dr. Alan Grant looked out the helicopter's window and looked at a flock of pelicans flying besides the helicopter. At the end of this film Dr. Alan Grant looked out of the plane's window and looked at a group of Pterodons flying beside the plane.

Téa Leoni's husband, David Duchovny, has impersonated Jeff Goldblum, star of the previous films, on Saturday Night Live.

The twin engine airplane that takes them to the island is a Hawker-Beechcraft King Air 200.

Trevor Morgan, who plays Eric Kirby, also played Scott Anspaugh on ER. Scott Anspaugh was the son of Dr. Donald Anspaugh (John Aylward), who was Chief of Staff. In Jurassic Park III, he plays William H. Macy's son. William H. Macy played Dr. David Morganstern on ER, who was the Chief of Surgery.

The original script had Billy Brennan killed, but Alessandro Nivola protested and director Joe Johnston had him brought back for the end.