Visible crew/equipment: During the scene after Debbie catches her husband at the fantasy baseball meeting, as they're arguing in the driveway, a boom mike can be seen in the shot (above Debbie's head) a couple of times.

Audio problem: In the scene where Ben and Jason are talking over the phone, after Jason tells Jonah, "Your mom is already there", we hear Jonah say, "Uncool man," but his lips are mouthing something different.

Continuity: After Alison and Debbie aren't let into the dance club, they are sitting on a street curb. At one point, Debbie is shown with a cigarette in her hand near her mouth. The camera shot changes during mid-sentence and her hand is down at her side.

Continuity: After the earthquake, when Ben and Allison are sifting through Ben's stuff that's all over the floor, Allison grabs the baby books and sees that Ben has not read them. The first shot showing the books has them in order of "What to Expect When You're Expecting", then "Expectant Father". In the shot immediately after that, the books have been switched, and the shot after that, the books are back to the first order.

Continuity: In the scene where Allison is swimming with her nieces and Ben,she is sitting at the edge of the pool and you can see her stomach is normal and toned, but in the scene prior she meets with the gynecologist and you can see she has a fairly big belly.

Continuity: When Alison tells Ben she's pregnant and he starts talking about how she didn't notice he didn't have the condom on, the camera is on Ben and we see her hand going up to her face. In the next shot a split second later, her hands are both down in her lap.

Continuity: In the scene where Ben and Pete are at a strip club in Vegas, Pete's dancer is wearing a plain, black g-string, but in the last shot the g-string has silver sequins and is tied at the side.

Continuity: When Alison and Ben are having breakfast in the diner after their first night together, Alison's hairstyle changes throughout the scene.