According to an interview with William H. Macy, the actor said the film's animatronic Spinosaurus had a 1,000-horsepower motor and that creature could turn its head at twice the force of gravity, with the tip of its nose moving at a speed of more than 100 miles per hour.
Jeff Goldblum confirmed in an interview that he was not invited back to reprise his role from the earlier Jurassic Park titles.
The effects crew used 250 gallons of oatmeal to simulate Spinosaur droppings.
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.
Sam Neill, as part of his contract, requested that the Australasian premiere of the film took place in his hometown of Dunedin, New Zealand.
After the Spinosaurus' attack on the airplane, Grant asks Billy how he would classify the animal. Billy's first inclination is to say the dinosaur is a Suchomimus or Baryonyx, due to the large snout. This is a joke meant for many fans of the film who, when the new movie's logo was first revealed, said the exact same thing Billy did. Many long pages on the message boards of fan pages and the official page were dedicated to this debate.
The Spinosaurus was the largest animatronic ever built. It weighed 12 tons and was operated by hydraulics. This allowed it to operate while completely submerged in water.
When the paleontologists enter the bar for dinner with the Kirby's, you can see a Jurassic Park (1993) pinball machine in the background.
Mirroring the latest palaeontologic finds that were made at the time, feathers were added onto various parts of the Velociraptor males, most noticeably on the top of their head. More recent finds suggest that raptors were indeed covered in feathers, a fact most members of the general public still find hard to digest. However the type of feather they used in the movie is incorrect: real raptors had the same kind of feathers as modern birds, and these covered their entire body, save for the tip of their snout.
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.
Shooting for the film began before the final script was completed.
Original scripts and storyboards had a Baryonyx as the main dinosaur instead of the Spinosaurus. Baryonyx is a close relative of the Spinosaurus and they looked basically the same. Baryonyx was a little smaller, and did not have the fin like the Spinosaurus did. Director Joe Johnston wanted a main dinosaur that would not be confused with the T-Rex. Though the Baryonyx would have been vastly different, the Spinosaurus had a bizarre look no other carnivore had.
The Raptors refusing to abandon their young is taken from Jack Horner's research.
When Billy and Dr. Grant are on the plane, Dr. Grant sleeps like Indiana Jones, by putting his hat over his head when he sleeps.
The original script was about a group of teenagers trapped on the island.
Michael Crichton worked with the screenwriters several days to brainstorm about a story, but left after some days when he could not come up with a satisfactory idea.
When Ellie is talking to Grant she mentions getting a quote from Jack Horner for her book. Jack Horner is a paleontologist who was Michael Crichton's inspiration for the character of Alan Grant; he was also a consultant on all of the three "Jurassic Park" films.
Dr. Grant's brown truck with the Museum of the Rockies and Montanta State University logos on it is actually based on the vehicle that belongs to Dr. Jack Horner, paleontologist consultant on the Jurassic Park films as well as the man that the character of Grant is based on. It was a difficult and time consuming process to find an exact match of Dr. Horner's truck to be used in the movie.
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.
Jurassic Park III (2001)
PG-13 | 1h 32min | Action, Adventure, Sci-Fi | 18 July 2001 (USA)
A decidedly odd couple with ulterior motives convince Dr. Alan Grant to go to Isla Sorna (the second InGen dinosaur lab.), resulting in an unexpected landing...and unexpected new inhabitants on the island.
Director: Joe Johnston
Writers: Michael Crichton (characters), Peter Buchman
Stars: Sam Neill, William H. Macy, Téa Leoni