Continuity: In the opening scene where Jim is watching the encoded TV and his mom comes in to say goodnight, after she kisses him if you look in the cracks of the shades it is light outside. It's day, not night.

Continuity: At the start when at Stiflers party, the amount of beer in Jim's cup constantly changes.

Continuity: In the scene where Stifler and the girl are in the bedroom at his party, the amount of beer in the cup changes frequently. Before he picks it up, it's about 1/2 full, when he picks it up it's about 3/4 full.

Continuity: In the bedroom scene the girl is holding a clear cup full of beer. The camera goes off her and when it comes back she is holding a blue cup. The camera goes back off her then on her and the cup is clear again.

Visible crew/equipment: When Jim and Kevin are upstairs at Stifler's party with the "M.I.L.F." guys, look above the top of the walls. There is no ceiling there and you can tell that they were on a built set.

Continuity: When the boys are sitting in the living room talking about how they have to "do it" before graduation, one of the boys sitting on the couch has his legs crossed, then they uncross, cross,and uncross. They keep changing positions.

Continuity: When Jim's father hands him the magazine "shaved" he changes between holding them at the top and at the bottom.

Factual error: In the scene where Oz is playing lacrosse, there are palm trees in the background. Michigan has no palm trees.

Continuity: Around the middle of the film, Oz's shirt changes going from the car park to the library, and then back again when he's singing in the classroom.

Factual error: In the scene where Heather pulls up in her car and confronts Oz after seeing Stifler making fun of her on the Lacrosse field her car has an actual Michigan license plate on it. One of the producers even pointed it out on the DVD thinking that it was a great attention to detail. The only problem with that is the plate is on the front bumper. Michigan does not have licence plates on the front, only in the back.

Continuity: In the scene where Jim adjusts the camera you can see that the camera shows only his bed. Afterwards when Nadia lies, the camera shows half of the room.

Continuity: When Nadia is going through Jim's drawer in his bedroom, a tub of Vaseline magically disappears from one shot to the next. In the same scene on top of the drawer a small white box appears at the same time the Vaseline disappears.

Visible crew/equipment: In the Internet scene, Jim tosses his shirt over the webcam on top of the computer so nobody will see them. It shows one shot in Jim's bedroom of the shirt start to slip off of the computer, and in the next shot is in Kevin's room seeing the shirt fall completely off. While they show the shot of the shirt falling through the computer, you can quite visibly see the hand that pulls the shirt off on the left side of the screen.

Revealing: When Jim is stripping, if you look at the computer screens you can see a line of text to the right of the video that reads "Duration 0:00:19:26." However, the stream is "live" so the duration should not be static.

Continuity: In the famous Nadia on the internet segment, there is a quick shot of the computer before Jim starts to get undressed. If you look on the desk next to the keyboard there is a gray t-shirt. It wasn't there when Jim was setting up the camera and Jim hasn't begun to undress yet. Obviously shot after Jim threw the shirt on the Web cam and it slid off.

Visible crew/equipment: When Finch is running to the toilet, a microphone wire is visible trailing down the inside of his shirt. This is pointed out in the DVD commentary.

Continuity: Finch runs into the girl's bathroom when the laxatives affect him. He tries to take out a toilet seat cover, but there are none left. The side shot shows a corner of the box hanging down below the dispenser, whereas when the shot changes to the front, there is no visible corner. It then returns to the side and the visible corner, and back to the front with no corner.

Continuity: The amount of paper Filch has put on the toilet seat increases drastically, instantly.

Continuity: During the lacrosse game towards the end of the movie Oz scores a goal - in one shot it shows the ball coming to rest in front of the goal. In the next shot you can see the ball hitting the net and coming to rest again.

Continuity: When Finch is moping through the house, depressed, he goes through a door marked "keep out". The door handle is on the left side, meaning that from inside the room the handle must be on the right. However, when he plays with the pool balls, we can see that the door he must just have come through (there's no other door visible) has the handle on the left.