Continuity: Towards the end, Danny Aiello fires at James Spader, and we see a brief close-up of the door frame being hit - there are two bullet holes seen in the door - one above and just to the left of the other. Then we cut away, and when we cut back and see James Spader looking around the door frame, there's just one bullet hole.

Continuity: When Danny Aiello's character is found at the pool holding the dog at bay with the gun, depending on the angle you can see that he already has the car keys in his left hand and that he is holding the gun with one then two hands then back to one.