The fourth Jurassic Park film, going under the title Jurassic World, has cast 12-year-old Ty Simpkins in a lead role, according to Deadline. Simpkins, who played Tony Stark's junior sidekick Harley in Iron Man 3, is set to join Bryce Dallas Howard in the putative blockbuster.

Simpkins made his film acting debut as a 3-year-old in the 2005 adaptation of War of the Worlds, directed by Jurassic World's producer Steven Spielberg. Despite his tender age he has racked up a string of credits, including a lead role in hit horror film Insidious, and playing Leonardo DiCaprio and Kate Winslet's son in Revolutionary Road.

No plot details for Jurassic World have been confirmed, though there has been plenty of speculation. Colin Trevorrow, director of Safety Not Guaranteed, has been handed the job of stewarding the film, which is due for release in June 2015.

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