I watched The Mortal Instruments: City of Bones and was extremely disappointed. The movie didn't feature Luke, Isabelle, Alec, or Hodge as much as I thought it should have. Also, the scene where Valentine gets the Mortal Cup was completely off. So was the acting, which needed a bit more work. Lily Collins was fine but I didn't think she did a great job with the character. Jamie Campbell Bower was fantastic as Jace except he lacked the defensive side that Jace has, but I am guessing that was due to the script which wasn't that well thought out. Valentine did not look like Valentine. I wish Valentine wore a blonde wig or something but nope, he did not so he looked inaccurately portrayed. The casting could have been done a bit better because since they are going out for the long run, the characters need to stay looking young which doesn't seem like it's going to work out with the various ages of the actors.
Especially Alec who looks like he's thirty. Oh wait, the actor is twenty-eight! Could that be a concidnence?