Watch: Behind-the-scenes of City of Bones – Training as Shadowhunters and the weapons of Mortal Instruments

In two new behind-the-scenes clips from The Mortal Instruments: City of Bones, we get a deeper look at what it takes to be a Shadowhunter. Jamie Campbell Bower and Lily Collins train as Jace and Clary in the first clip, while in the second the actors of the movie give us a glimpse at the weapons