Revealing mistake: Towards the end when Harmony calls Perry's phone as she's lying on the ground, Harry grabs the phone and looks at the caller ID to see her name. Unfortunately that's not the display showing who's calling. Anyone who has a Nokia phone will recognise that that's showing the contact list with just two entries - Harmony and a random number. The fact that it says "contacts" at the top of the screen is a bit of a giveaway.
Add timeJon Sandys
Continuity mistake: When Harry and Perry were on a rooftop after finding out the identity of the girl in the lake, Harry was talking non-stop and Perry puts up his left hand to Harry's mouth to stop Harry talking. When the scene cuts, we see that Perry has his right hand up instead of his left.