"Mortal Instruments" prequel in development

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A young girl inherits an ability to see and interact with a clan of supernatural spirits in this 2013 fantasy adventure drama directed by Harald Zwart. Based on the first book of the New York Times' bestselling fantasy series by Cassandra Clare, The Mortal Instruments: City of Bones stars Lily Collins, Lena Headey, Jamie Campbell Bower, Jared Harris & Jonathan Rhys Meyers.
April 15th, 2013

Stephanie Sanditz has been hired to write 'The Mortal Instruments' prequel 'The Infernal Devices'.

Constantin Films is beginning development on a prequel to its forthcoming fantasy film - which stars Lily Collins, Jamie Campbell Bower and Robert Sheehan - in anticipation of the success of 'The Mortal Instruments: City of Bones', according to The Hollywood Reporter.

Constantin Films has hired Sanditz to pen the screenplay for the first book in the trilogy, which serves as a prequel to 'The Mortal Instruments', and are also looking for a director to helm the movie.

'The Mortal Instruments' centres on a young girl, Clary Fray (Collins), who, upon her mother's kidnapping, discovers she is part of a magical species of angels known as Shadowhunters and finds herself immersed in a fantasy world of angels, vampires, witches and warlocks.

The prequel series, meanwhile, is set in the Victorian era and features the ancestors of the main book series' protagonists.

Both book series were written by young adult author Cassandra Clare and are said to be similar in tone to hit book-to-movie franchises 'Twilight' and 'The Hunger Games'.

The first big screen adaptation of Clare's fantasy book series, 'City of Bones', is due for release in August.