Other mistake: In the Romeo & Juliet-like beginning of the story, Calum looks at his own hand and discovers Elena's blood. Obviously censorship ratings prevent the scene from being realistic and he has barely a smudge of blood on his own hand, but Elena was lying dead on top of him; the fact that his clothes are absolutely pristine for the rest of the scene is laughable - at least she could have gutted herself a little bit on the side and not where she would inevitably bleed him a river right on his white shirt. (00:02:55)
Other mistake: Calum fights off Elena's father and is chased away by the guards. Somehow he has a fight on the top of the stairs with 2 guards, but it takes in excess of 40 seconds for the previous pursuers to catch up with him. (00:04:25)