Screenrant reported the release date for ‘The Mortal Instruments  City of Bones  set on August 23, 2013 !!

The film lead starring Lily Collins and Jamie Campbell Bower

We now know (via Box Office Mojo) that Sony has set The Mortal Instruments to hit theaters in the U.S. on August 23rd, 2013. That’s probably a wise move, as Clare’s source material is not the best-selling monstrosity that other young adult series-turned-blockbusters are (see: Twilight, The Hunger Games). Not to mention, neither of the film’s attached stars – Lily Collins (Mirror Mirror) and Jamie Campbell Bower (Camelot) – are big enough names so as to make the film more bankable – and thus able to hold its own against some of the “big guns” that will grace the silver screen during the more competitive portion of next summer.