Actors Kevin Durand and Robert Maillet have joined the cast of The Mortal Instruments for Sony Pictures and director Harald Zwart (The Karate Kid).

The story, adapted from Cassandra Clare's best-selling young adult novel series, centers on Clary Fray (Lily Collins), a young woman living in New York City, who learns that she is a descendant of the Shadowhunters, a group of warriors who protect the earth from demons. Kevin Durand and Robert Maillet will play the villainous duo Pangborn and Blackwell. Jamie Campbell Bower and Jemima West also star in this fantasy adaptation.

Harald Zwart is directing from an adapted screenplay by I. Marlene King and Jessica Postigo. Robert Kulzer is producing for Constantin Film, with Robert Shaye and Michael Lynne producing for Unique Features. Production is expected to begin on August 15 in Toronto.

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