Continuity: When Molly takes Mikey into work and he is under the desk, Rona is still wearing her shoe. Yet when the scene changes, her shoe is missing when Mikey starts tickling her foot. Then when the boss realises that Mikey is under the desk, her shoe is back on. When the shot changes again, her shoe is off.

Continuity: When Mikey has a bad dream, John Travolta goes into his room to comfort him. He picks up a Popeye doll and there is nothing next to him. In the next shot, a Pee-Wee Herman doll appears.

Continuity: In the scene where John takes the kids to the movies and is trying to weasel some free popcorn, it is obvious that someone shakes the girl baby to make her cry.

Continuity: When James and Molly go outside the apartment to argue away from the kids, the front door, which is behind James, keeps closing slightly then opening slightly many times throughout the scene.

Other: Right after Julie is born and they're taking her away, the nurse is opening the door. Then they change over to the mother, then back to the baby, and the nurse is just opening the door again.

Continuity: Towards the end of the movie, Molly tells James not to go back to the airport because its pouring rain. If you look in the background, you can see that it is obviously daylight and the sun is shining, but in the next shot it shows that outside it is raining.