Steven Spielberg is on board as co-producer, but will not direct the fourth dinosaur movie

Jurassic Park 4 is still at the writing stage, according to producer Kathleen Kennedy.

Back in June, it was reported that Rick Jaffa and Amanda Silver, the screenwriting duo behind Rise Of The Planet Of The Apes, had been hired to provide a screenplay. Steven Spielberg is producing the movie alongside Kennedy, but is not intending to direct.

When asked how the dinosaur sequel is progressing, Kennedy told “Writing, writing, writing.”

Continuing, Kennedy admitted that extending a film series as popular as Jurassic Park is “really hard”. She explained: “We’re trying to come up with a story that makes sense and isn’t going to disappoint people and is, hopefully, going to get people excited and reinvigorate the franchise. We’ve got to start with a script and the story.”

The Jurassic Park films, based on a 1993 novel by Michael Crichton, have grossed a collective $1.9 billion (£1.2 billion) worldwide. Spielberg directed 1994’s Jurassic Park and its 1997 sequel The Lost World, but passed the baton to Joe Johnston for Jurassic Park III in 2001.

Earlier this month, James Cameron revealed that he nearly directed the original Jurassic Park film. Cameron tried to buy the screen rights to Crichton’s novel, but Spielberg pipped him by “a few hours”.