Continuity: In the scene where Alec Baldwin is in the house to discuss Conrad going to military school he is dressed for work. He puts his briefcase down and sets his sunglasses on top of it. In the next scene the glasses are behind and to the side of the case and in the next scene they are back on top of the case. And so on.

Continuity: When Larry first arrives at the house there is a screen door attached to the front door, which he holds open. In all other scenes the screen door is gone.

Continuity: When Conrad, Sally and the Cat come out of the bedroom after they have first met, the camera zooms on Sally. The door behind her is closed. Goes to wide shot-Conrad is still walking out the doorway and the door is open. After that, the door remains closed.

Plot hole: In the scene at the little girl's party where Cat is the pinata, and he gets whacked in the groin, he screams out loud, all the kids hear him, you even see their shocked faces as well. But after Conrad and Sally throw the lollies, the kids totally forget about Cat yelling - hardly likely given the level of shock. As well as that, wouldn't the kids have noticed that the Cat didn't have a hole in it when they saw the lollies? They just came from behind a bush. And to top it all off, in the scene where all the kids are greedily on the ground grabbing the lollies, and the Cat's about to hit the kid that whacked him, in the bottom left corner, a little girl looks directly at the Cat, Conrad and Sally.

Continuity: In the scene after Cat chops his tail in half with the knife, we see Cat with a bandage on his tail. When the oven explodes 30 seconds later, best viewed in slow motion as the trio stand behind the umbrella, you can see the bandage has disappeared from the cat's tail.

Continuity: In the scene where the cat cuts off his tail, when he first hits it with the knife it bounces off but in the next shot it went through.