Corrected entry: In the scene where Stifler has "fed" the ring to the dog he is waiting for the dog which swallowed it to go to the toilet to pass it through. When the dog has done this he takes the case from the chocolate cake he is eating to pick up the dogs 'business' and the cake is then lying face down on his plate in the next shot the cake is then the right way up again. (01:04:55)
Corrected entry: In the opening shot on the morning of the wedding, the sun is rising over what is supposed to be Lake Michigan. Since Grand Traverse County and Michigan in general is on the east side of Lake Michigan, this is not possible.
Corrected entry: When the bride's parents walk in through the door to see the daughter's future husband's parents, the dad walks in on the right, and the mom on the left. The camera shot changes, then goes back to them and they have changed positions.
Corrected entry: At the bachelors party, one of the girls is called "Fräulein Brandy", yet in one scene Finch says to her: "Anything for a French person - if you insist Fräulein." Finch, sophisticated as he is, would know that "Fräulein" is a German word, not a French on
Corrected entry: There is no explanation anywhere in this film as to where the other friends went (Oz, Heather, Vicki).
Corrected entry: When Michelle's parents first show Kevin, Finch and Stifler the wedding ring, there is a close up of it. It is a gold band with diamonds in it. Later, the ring is shown from a distance. It is now a band with a large diamond setting that bears a striking resemblance to Michelle's engagement ring. Later when Stifler has the ring, it has returned to its original appearance.
Corrected entry: When Finch is listening in on the sisters in the toilet, he climbs onto the toilet seat to hear, but when they realise someone is there they look up toward the roof, but Finch should be below them.
Corrected entry: in the bachelor party scene, how the hell can Finch get showered off, completely dried and change clothes in roughly 3 minutes?
Corrected entry: In the scene where Stifler, Finch, Cadence and Kevin are preparing to head north for the wedding, Finch gets in the back seat of Kevin's car to be with Cadence. She then leaves to ride with Stifler. It shows Cadence getting into Stifler's car, and we still see Finch in the back seat of Kevin's. The very next shot is Kevin driving away, and Finch has magically moved to the front seat.