Jurassic Park 4 was meant to be released this summer, but it looks like the dinosaurs won’t be returning to the big screen just yet.

Universal Studios, who are putting out the film, released a statement saying they are delaying its release to have more time to improve the picture:

“Universal has decided to release Jurassic Park 4 at a later date giving the studio and filmmakers adequate time to bring audiences the best possible version of the fourth instalment in Universal’s beloved franchise.

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“We could not be more excited about the vision that Colin Trevorrow has created for this film, and we look forward to watching as he and the producers create another great chapter in this franchise’s storied history.”

Jurassic Park 4 would be the first film in the dinosaur franchise since Jurassic Park III, which was released in 2001. The first film, Jurassic Park, was an adaptation of the Michael Crichton novel and came out in 1993, receiving acclaim for its revolutionary special effects. A sequel followed, The Lost World: Jurassic Park, in 1997.

Universal’s statement follows tweets from members of the Jurassic Park 4 film crew sent earlier this week, which have since been deleted but were captured by film blog, Aint It Cool News. Concept artist Dean Sherriff wrote: “JP4 on hold” and the film’s digital assets manager Todd Smoyer posted: “Hollywood makes and crushes dreams. Goodbye JP4.”

Universal are yet to announce a new release date, but the director Trevorrow tweeted an image from the first film’s setting last week.

Little information has been given for the delay, or the changes Universal want to make to the film to improve it. However, an on-set source told a blog dedicated to the film, jurassicpark4-movie.com, that creative differences and Universal’s desire to create an “epic” film, which has reportedly led to changes within the film crew, had caused the delay.

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