 After the enormous success of the film , Spielberg requested Michael Crichton to write a sequel novel , leading to the 1995 book The Lost World , which in turn was adapted as The Lost World : Jurassic Park on May 23 , 1997 , also directed by Spielberg and written by David Koepp . Another film , Jurassic Park III , was released on July 18 , 2001 under the direction of Joe Johnston and Spielberg as executive producer , featuring an original script that incorporated unused elements from Crichton 's original Jurassic Park . A fourth installment Jurassic World was released in theaters on June 12 , 2015 . Spielberg again produced , with Colin Trevorrow directing a script written by himself and Derek Connolly . 
