Universal Studios and Steven Spielbergís Amblin Entertainment have announced the green light for a third installment of the studioís prized film franchise, ""Jurassic Park.""""Jumanji"" director Joe Johnston will direct ""Jurassic Park 3,"" based on a script hatched by Spielberg and a script written by Craig in close collaboration with Johnston.Spielberg was expected to helm the project, but he will be directing Tom Cruise in the Fox-DreamWorks co-production ""Minority Report,"" instead. Johnstonís previous work includes ""Honey, I Shrunk The Kids,"" ""The Pagemaster"" and ""The Rocketeer.""