Jurassic Park is a 1993 American science fiction film directed by Steven Spielberg and written by Michael Crichton and David Koepp, based on Crichton's 1990 novel of the same name. Starring Sam Neill, Laura Dern, Jeff Goldblum, and Richard Attenborough, the film follows a group of visitors struggling to survive after sabotage disables the security systems of a dinosaur theme park, releasing the dinosaurs. Spielberg acquired the film rights before the novel's publication for $1.5 million through Universal Pictures, with Crichton receiving an additional $500,000 to adapt the story. David Koepp wrote the final screenplay, streamlining the novel and revising several characters.