Visible crew/equipment: When Chrissie gets knocked out by the plant pot, you can see a safety mat conveniently placed next to her.

Factual error: In the scene when Jim goes to band camp to look for Michelle, all the flute players (including Michelle) don't know how to play flute, they aren't moving their fingers to match the speed of the music. (Time)

Continuity: In the scene where Jim, Oz and Finch are sitting in front of Dog Years after the call from Nadia, you can see some people in the back. When Kevin shows up the people disappear. The camera moves away for a moment and after it comes back, the people have reappeared.

Continuity: In the scene where Jim meets Michelle at band camp and he guesses that a bear came, when she is saying its like you can read my mind there then is a side on shot of her, you can see that the hair down her right side is one big group followed by a few obvious strands just infront, when the shot changes back to a front view of Michelle there are no extra strands visible.

Continuity: At the beach house, Finch is putting up his graduation photos of him, Stifler, and Stifler's mom. The top photo, Stifler's mom is not wearing the graduation cap, the bottom one, she is. Later, after Stifler's brother shows up and Finch is disappointed, he takes the pictures down but they have reversed their order. Stifler's mom with the cap is now on top. (Time)

Continuity: When Michelle gets into her car after the splitting up scene she's not wearing her seatbelt then it's cuts to a different angle and she is. (Time)

Continuity: In one of the first scenes of the movie when Stifler is talking to Oz in a classroom, you can see clearly that Stifler has a cold sore on his left side of the bottom lip. The camera changes to Oz and later on when shows Stifler again the sore is gone. (Time)

Continuity: In the scene when the guys are painting their first house, you see Stifler talking to Finch, and Stifler is holding a bottle by the cap. In the very next shot, he is holding it by the bottle itself. You never see him change his grip on the bottle. (Time)

Continuity: In the scene where Jim makes a fool of himself by trying to play the trombone, he yells into the microphone and turns to Michelle ( who is sitting towards the left of the row of seats). He asks something like, "What should I do?" He then turns around and the camera cuts to a different angle. Now, he is standing in front of a girls that is two seats down from Michelle. (Time)

Factual error: The movie is supposed to take place in Michigan, but you can often see the southern CA mountains in the background in the beach scenes. There are no mountains in Michigan that look like those.

Continuity: At the start of the movie, where Jim's father comes into the dorm room after that guy unlocks the door for him, he comes in, and drops the six-back of beer then sees what Jim is doing, at an angle. When it drops to the floor, it is standing. Wouldn't it be on its side? (Time)

Continuity: At the beach house when Stiffler is passing out the porn, he throws Jim a porno movie that has a different title than the one that gets glued to his hand. (Time)