Continuity mistake: After the police officer starts dragging his wounded partner toward their SUV, the camera shifts to Jake and Henrietta talking along the side of the house. When the camera returns to the police officers, the officer dragging the other officer has not made any progress and even appears to be further back from where he started. (01:21:45)
Other mistake: It is highly unlikely that Troy's body would have ended up on his back that far away from the side of the house and facing the window Jake pushed him out of. (01:27:10 - 01:27:35)