- Directors: Steven Spielberg
- Producers: Kathleen Kennedy, Gerald R Molen
- Writers: Screenplay, David Koepp, Malia Scotch Marmo, Michael Crichton, Novel, Michael Crichton
- Genres: Action, Adventure, Sci-Fi, Thriller
- Actors: Sam Neill, Laura Dern, Jeff Goldblum, Richard Attenborough, Joseph Mazzello, Ariana Richards, Martin Ferrero, Bob Peck, Samuel L Jackson, Wayne Knight
On Isla Nublar located on an island to the West of Costa Rica, an InGen employee is attacked while placing a Velociraptor into a specially built enclosure, prompting a lawsuit from his family. CEO John Hammond is pressured by his investors to allow a safety inspection by experts before opening the park. He invites paleontologist Alan Grant, paleobotanist Ellie Sattler, chaos theorist Ian Malcolm, and his investors’ attorney Donald Gennaro to perform the inspection. The group meets a Brachiosaurus when they set off into the park. At the park, they learn that InGen created the dinosaurs by cloning genetic material found in mosquitoes that fed on dinosaur blood, preserved in Dominican amber. The DNA from these samples was spliced with DNA from frogs to fill in sequence gaps. Only female dinosaurs are created in order to prevent uncontrolled breeding within the park. The team is also shown the enclosure of the Velociraptor, dubbed “raptors”, intelligent and ferocious predators.
Malcolm and Sattler are worried, but Grant remains neutral. They meet Hammond’s grandchildren, Tim and Alexis “Lex” Murphy, and go on a vehicular tour of the park. Ellie leaves the tour to supervise and take care of a sick Triceratops with Doctor of Veterinary Medicine Gerry Harding. A tropical storm hits the island as most InGen employees leave for the day leaving only Hammond, game warden Robert Muldoon, chief engineer Ray Arnold, and leading computer programmer Dennis Nedry to supervise the park and the visitors. Bribed by InGen’s rival Lewis Dodgson, Nedry takes an opportunity to shut down the park’s security system so he can steal dinosaur embryos and deliver them to an informant at the auxiliary dock. As a result, the security systems of the whole park are shut down, allowing the Tyrannosaurus to break through the deactivated electric fence surrounding its pen, devouring Gennaro, attacking Tim and Lex hiding in the car, and wounding Malcolm. The children and Grant only narrowly avoid being killed and eaten. Just after they flee the wreckage, Sattler and Muldoon arrive. At first, they believe the only survivor of the attack is Malcolm, but upon further investigation they find footprints belonging to Grant and the kids. Just then, the T. rex returns and Malcolm, Muldoon, and Sattler barely escape her in their Jeep. Meanwhile, Nedry crashes his Jeep and, while trying to winch it, is killed by a Dilophosaurus. Grant, Tim, and Lex spend the night in a tree. While hiking to safety the next morning, they discover hatched eggs, thus indicating that the dinosaurs are actually breeding. Grant realizes that the frog DNA is responsible: some species of frog are known to spontaneously change sex in a single-sex environment.
Raptors enter the Visitor Center and Lex and Tim narrowly escape them in the kitchen (locking one in the freezer). Grant and Sattler take Lex and Tim to the Control Room where Lex is finally able to restore the Park’s computer systems in order to call Hammond to request a helicopter rescue of the survivors. Grant and Sattler hold off a raptor trying to open the door to the computer room, until the power is restored and the electromagnetic locks begin working. With the door secure, the raptor breaks into the room through the window, and the group climbs up into the ceiling crawlspace and arrive at the Visitors Center rotunda, above the skeleton display. The raptors pursue and after a scuffle on top of the fossil exhibits where the raptors block their escape route, help comes from an unlikely source: the Tyrannosaurus suddenly appears and attacks the raptors. The raptors are killed by the Tyrannosaurus, saving Grant, Sattler, Lex, and Tim in the process. The four flee the fight, climb into Hammond and Malcolm’s jeep and leave. Grant says he will not endorse the park, a choice with which Hammond concurs. As all fly away in the helicopter, the children fall asleep beside Grant, who contemplatively watches the birds flying nearby, the surviving relatives of the dinosaurs they escaped.