The Mortal Instruments: City of Bones (2013)

Plot hole: When Clary uses the rune that temporarily freezes the demons, the group just slowly creeps past them to escape rather than destroying the demons when they're are completely helpless. When the rune wears off, they begin fighting and killing the demons again.

raywest

Hodge Starkweather: Everything you've heard... About monsters, about nightmares, legends whispered around campfires. All the stories are true.