The trailer for the fourth Jurassic Park film, starring Chris Pratt and Bryce Dallas Howard, has arrived three days early

After a decade of delays, the first trailer for Jurassic World has arrived three days early. A teaser trailer released for the film on Sunday explained that the official first trailer for Jurassic World would appear on Friday.

However, the first full trailer for the film has bucked its years of disastrous development by dropping three days early.

The sequel takes place 22 years after the events of the first Jurassic Park film, which was released in 1993. A dinosaur safari park, Jurassic World, has been built out of the ruins of the original Jurassic Park on Isla Nublar.

As the trailer shows, this Jurassic World includes opportunities to paddle down the river as giant herbivores graze and join the Mosasaurus - an enormous prehistoric crocodile - eat dead sharks in a situation reminiscent of Seaworld's Shamu enclosure. This was expected by eagle-eyed Jurassic Park fans after a Jurassic World brochure appeared online in July.

But then the genetically modified hybrids arrive: they're laying new dinosaurs. As Chris Pratt's character, Owen, says: "it's probably not a good idea."

The new dinosaur that was "cooked up in that lab" is capable of climbing 40 foot walls, is highly intelligent and out to kill anything that moves...

Written and directed by Colin Trevorrow, the film will star Guardians of the Galaxy star Pratt and The Help actress Bryce Dallas Howard.

Steven Spielberg, who directed the first two Jurassic Park films and acted as executive producer on the third, will executive produce this sequel too.

Jurassic World will be released on June 12 2015.