'The Mortal Instruments' to Return as TV Series 

MIPCOM: 'The Mortal Instruments' to Return as TV Series

\'The Mortal Instruments: City of Bones\' earned just $31 million at the domestic box office.

\'Helix\' showrunner Ed Decter will develop Cassandra Clare\'s YA fantasy franchise for the small screen

Constantin Film, the production company that controls the rights to Cassandra Clare's best-selling YA fantasy franchise and which produced

Constantin has hired Ed Decter, whose writer-producer credits include

series. The project is currently in development, with Constantin planning to begin production next year. No broadcast partners are yet attached to the series.

Constantin had originally planned to turn Clare's fantasy series into a feature film franchise but shelved that idea after the first

film, starring Lily Collins and Jamie Campbell Bower, tanked at the box office, earning just $31 million domestically. Constantin, however, insisted it had not abandoned the franchise and planned to return to

“It actually makes sense to do (the novels) as a TV series,” Constantin film and TV head Martin Moszkowicz told

. “There was so much from the book that we had to leave out of the

film. In the series we'll be able to go deeper and explore this world in greater detail and depth.”

series is part of a broader strategic shift at Constantin that will see the German-based company move into English-language television series. Moszkowicz said Constantin is looking at possible television adaptations of several of its English-language movie properties, including period serial killer drama

Constantin's German television business has been consistently profitable over the years even as its recent English-language films, with the exception of the

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