The screenwriting couple behind 2011's Rise Of The Planet Of The Apes have been commissioned to revamp dinosaur movie franchise Jurassic Park. The news that Rick Jaffa and Amanda Silver are working on a fourth film comes a year after movie mogul Steven Spielberg, who directed the first Jurassic Park and its sequel, announced plans to make another movie at the 2011 Comic-Con event in San Diego, California.
