Knocked Up

When Alison is in the delivery room and Ben's friends are waiting outside, Jay's hairstyle changes briefly between shots.

In a scene where Ben is talking on the phone, a fake breast on the glass table appears and disappears between shots.

When Debbie is going through the house of her husband's suspected "lover", her hair is very curly.

She catches him at the fantasy baseball draft, and they go outside.

When they're outside, her hair is almost straight.

When Deb and Pete are in the waiting room while Alison is delivering, Deb's bra strap is showing during a close-up of her talking to Pete.

It's not visible in wider shots before or after.

In the scene in Alison's boss's office, where Alison's pregnancy is being discussed, a crew member can be seen reflected in the window behind Jill.

The crew member can be seen moving about.

Alison's earrings change during the scene when she's being weighed in the doctor's office.

At first they are stones, then they change to gold hoops.

When Alison is interviewing on the red carpet when she is pregnant, the camera guy over her shoulder is present for a profile shot, then disappears on a head on shot.

When Alison is arguing with Ben in her car, there is no rear-view mirror installed on the car (presumably to give the camera a better shot of them).

In the scene where Ben and Alison are drinking and dancing the night they meet at the club, her hair alternates between neatly up and down.

When they decide to leave the club, her hair is neatly tied back, but when they exit the club, it's down.

The ultrasound images do not correspond to stated gestational ages.

They're off by many weeks.

In addition to the missing rear-view mirrors in Alison's red VW, there are no front head restraints installed in the car.

That's against the law in the US.

In the scene when Alison is talking with her boss and Jill about her pregnancy, a mirror behind her boss shows a TV behind Jill.

In the close-up shots of Jill the TV is not there.

In the birth scene, the umbilical cord of the infant is not attached to the infant's stomach, and the infant's completely healed belly button is seen next to the cord.

At the restaurant, Ben's shrimp cocktail alternately contains three, then seven shrimps on the side of the bowl.

When Ben and Pete are in the hotel room talking about the chairs, the pillow is messed up in one scene, then re-fluffed in the next.

When Alison tells Debbie that she will be appearing in front of the camera, Debbie tells Pete to pay attention.

At first, Pete's headphones are on backwards (cables on the front of the ear-cups); as soon as the angle changes to behind Pete, they are on the correct way and remain so.

When Ben explains his dilemma to his father, at one point when viewed side-on, his father's left arm is extended.

In the next instant when viewed from the front, his father's arms are folded.

When Jonah is watching _Wild Things (1998)_ (qv) the first time Alison comes over, the VCR clock goes back in time between shots.

When Alison is in her boss's office discussing her pregnancy, a small microphone is briefly visible in her cleavage.

When Ben is walking up to the door for Debbie and Pete's oldest daughter's birthday party, he stops to knock.

However, the door is shiny enough that you can see the reflection of Ben and a crew member walking up beside him with the camera.

When Alison is driving her nieces to school, Sadie begins to tell her about how she Googled 'murder.

' As she is telling the story the seatbelt jumps from being on the side of her shoulder to on top of it (next to her neck) between shots.

When Ben proposes to Alison, she is wearing a striped green shirt and it is night time.

The next scene she is in bed eating ice cream with her sister.

Then the scene after that she is in the car with her sister, it is morning and she is wearing the same shirt.

In the dinner scene when Pete does his 'Robert De Niro' (qv) impersonation, his wine glass is shown in his hand, then on the table, and back again.

When Ben is proposing to Alison, Alison's hair alternates between being over her right ear and being tucked behind her right ear in different shots.

Alison has prominent tan lines on her shoulders when she first starts talking to Ben at the birthday party near the end of the film.

These are covered up with makeup a few minutes later.

Debbie pulls up a map of sex offenders, and talks about how they are surrounded.

The film takes place in California, but the map shows Boston (Interstate 95 and 93 intersect with routes 128, 1, and 3).

When Ben and Pete are in the Las Vegas hotel room, the Sands Hotel is seen out the window.

The Sands was imploded in 1996 to make way for the Venetian.

In the club after Ben and Jason go to talk to Allison and Debbie, Jonah tells Martin that he has to leave.

A few scenes later you see him still in the club.

When Ben and Pete are in the hotel room in Vegas talking about chairs, in the back you can see the city through the window and in the next scene the curtain blocks the view.

In the scene where Jonah and Jason are playing Ping-Pong, Allison's car is shown in the background.

Some of the characters talk about seeing Spider-Man 3, which came out in theaters four weeks before Knocked Up entered theaters.

Later in the movie, Allison interviews celebrities at the 2006 MTV Movie Awards, which took place a year before the movie actually came out.

When driving home with baby, the same scenery including a McDonald's restaurant pass by them more than once.

When Alison is sitting on the couch next to Ben as his friends leave to go play paint-ball, she has a noticeable pregnant belly.

In the next scene, she is sitting on the side of the pool in a bikini with her sister and nieces, and has a flat stomach.

In the next scene, the belly is back.

(The fake belly couldn't get wet, this is mentioned in the Director's Commentary.

) When Ben is watching _Cheaper by the Dozen (2003)_ (qv) on the TV, the film skips from a scene near the beginning (where Tom is getting all the kids up for school) to a scene near the middle (where Tom is putting a band aid on one of the girls and fishes an athletics cup out of the pasta).

In the bar scene in the beginning of the movie, Ben helps himself to two Coronas.

He then hands them to the ladies.

However, Coronas require a bottle opener, which he never used.

- PLOTBen claims that he was so drunk that he doesn't remember the night with Alison and says that he wishes he did.

Yet later he and Alison argue over the fact that he didn't use a condom, and Ben clearly seems to remember being told to "just do it already.

" There are no front head restraints installed in Deb and Pete's Lexus.

That's against the law in the US.

When Debbie and Allison are looking at the tests, Debbie picks one up and starts freaking out thinking it was the one she took because it says positive.

The test she is looking at is actually backwards (result window toward the camera not towards her) so she wouldn't be able to see the results.

When Allison meets Ben and his friends at their house.

Jay walks in holding a towel around his waist with his right hand, then turns around and he is holding it with his left hand.

When Ben and Pete are headed to Las Vegas, there is a wide shot of the car approaching Vegas from the east.

However they are coming from California so would be approaching from the West.

When Alison is arguing with Ben in her car, there is no rear-view mirror installed on the car (presumably to give the camera a better shot of them).

When Ben is revealing to the family that Allison is pregnant, Allison is drinking out of a light blue coffee cup.

In the next shot, Allison and Debbie are talking about Ben while he plays with the kids, Allison is holding a red cup and Debbie has the blue cup.