Naomie Harris is starring in 'Robin and the Hood'.

The 47-year-old actress is to feature in the ensemble cast of the family adventure flick with Gwendoline Christie, Mark Williams and rising star Darcey Ewart.

The film has been directed by Phil Hawkins and completed principal photography during the summer. It will debut as a Sky Original in the UK and Ireland on Sky Cinema.

It follows the tenacious 11-year-old Robin (Ewart) and her friends, known as 'The Hoods', for whom the patch of overgrown scrubland at the end of their cul-de-sac is a magical kingdom.

The only thing that limits their imagination is the prospect of losing their magical kingdom forever – a threat that becomes very real when the slippery property developer Clipboard (Harris) turns up and dazzles the adults with the promise of health spas and day-care facilities.

As the protests of Robin and her friends fall on deaf ears, they take matters into their own hands to save their kingdom.

The script has been written by Stuart Benson and Paul Davidson while Silver Reel's Claudia Bluemhuber and Future Artists Entertainment's Matt Williams are producing.

Bluemhuber said: "We were excited about Stuart and Paul's script from the moment we encountered it – 'Robin and the Hood' is a story with a big heart and plenty of laughter, which reminds us of the power and importance of imagination in a world that is swiftly losing it.

"Landing the fantastic (quartet) of Naomie, Mark, Gwendoline and Darcy to lead our cast is a brilliant coup, and we're thrilled that Sky, Future Artists and GFM are joining us on this adventure!"