 Industrialist John Hammond and his bioengineering company , InGen , have created a theme park called Jurassic Park on Isla Nublar , a tropical Costa Rican island populated with cloned dinosaurs . After one of the park workers is killed by a Velociraptor , the park 's investors , represented by lawyer Donald Gennaro , insist that experts visit the park and certify it as safe . Gennaro invites mathematician Ian Malcolm , while Hammond invites paleontologist Dr. Alan Grant and paleobotanist Dr. Ellie Sattler . Upon arrival , the group is stunned to see a live Brachiosaurus . 
