Similar to many recent bestselling fantasy young adult novels adapted to the big screen, The Mortal Instruments: City of Bones is another story about a 'seemingly ordinary' teen girl learns about her true identity and subsequently trapped in a love triangle (while trying to accept her destiny at the same time) in the midst of an eternal conflict between the supernatural good and evil.The film is filled with one-line exposition and overstuffed with many interesting fantasy/mythical creatures such as demons, werewolves, vampires, warlocks, witches, with the addition of nephilims (angel half-bloods)thrown in the mix but it never bothered to explore or show the specifics for any of them.