Following the debut of the poster earlier today, Sony has released the first trailer for The Mortal Instruments: City of Bones. Check it out in the player below!

Opening in theaters on August 23, 2013, the Harald Zwart-directed film stars Lily Collins, Jaime Campbell Bower, Robert Sheehan, Jemima West, Kevin Segers, Kevin Durand, Robert Maillet, Lena Headey, Jared Harris, Godfrey Gao, Aidan Turner, CCH Pounder and Jonathan Rhys Meyers.

In the series' first book, the #1 New York Times bestseller "The Mortal Instruments: City of Bones," set in contemporary New York City, a seemingly ordinary teenager, Clary Fray, discovers she is the descendant of a line of Shadowhunters, a secret cadre of young half-angel warriors locked in an ancient battle to protect our world from demons. After the disappearance of her mother, Clary must join forces with a group of Shadowhunters, who introduce her to a dangerous alternate New York called Downworld, filled with demons, warlocks, vampires, werewolves and other deadly creatures.