The Lost World: Jurassic Park
Directed by Steven Spielberg
Written by Michael Crichton and David Koepp
Released May 23, 1997

After the release of the original novel and the success of the first film, Crichton was pressured not only by fans, but Spielberg himself, for a sequel novel. After the Lost World was published in 1995, production began on a film sequel.

The film picks up four years after the disaster at Jurassic Park. After a small girl is attacked by a small group of compsognathus, Ian Malcolm discovers that there is a second island full of a variety of dinosaurs. John Hammond reveals to Malcolm that there was another island ("Site B") on which dinosaurs were bred before being transported to Isla Nublar. Left alone since the disaster, the dinosaurs have flourished, and Hammond is anxious that the world see them in their "natural" environment before they are exploited (mercenaries plan to capture and bring the dinosaurs to the mainland.) Dr. John Hammond decides to send four adventures to monitor the dinosaur's lifestyle before InGen move forward in controlling the island. Malcolm doesn't like the idea, but before he can contact the other three members, he finds out that his girlfriend, Sarah Harding is already on the island. Now, what was supposed to be a natural viewing of the incredible creatures in their habitats, has turned into a rescue mission with everyones' life at danger.

Film sinopsis adapted from imdb.com