My Best Friend's WeddingGoofs
Continuity
In the restaurant scene, a waiter sits down to a piano to accompany the singing. While the piano is still playing, he is seen in the background waving his lobster arms.
Disappearing picture when Julianne is composing the email.
When Jules enters the private box at the ballpark, she is carrying a full tray of beers. She then hands a couple to some guys. A few seconds later the tray is full again.
Incorrectly regarded as goofs
Julianne has two pairs of sunglasses throughout the whole time she's at Kimmy's parents' estate, often wearing one pair while the other is hanging on her top button of her belly shirt. When she and Michael reach the gazebo and she takes off the sunglasses she's been wearing, one can see that she's holding two pairs.
Charlie Trotter plays himself in the movie. He is a Chicago chef and, at the time of the movie, had no restaurants other than his signature restaurant in Chicago. Jules reviews his New York restaurant; presumably, he was either hired away by a new fictional restaurant in New York or has opened a fictional branch of his Chicago restaurant there.
Revealing mistakes
Scotty says he doesn't know who Dionne Warwick is. However, when the dinner party spontaneously begins to sing "I Say a Little Prayer" he knows the lyrics and joins in.
Audio/visual unsynchronised
At the wedding reception when the cousins are singing "The Way You Look Tonight," you can hear the band leader singing backup vocals long before he steps up to the microphone.
Errors in geography
After Michael and Kim pick up Julianne from O'Hare Airport, they're heading north on Chicago's Lake Shore Drive. Kimmy swerves wildly to her exit. The next time you see the car, it's heading south on Lake Shore Drive with the Drake Hotel in the distance.
In Chicago, Lake Shore Drive is bordered by Lake Michigan on the east and the city on its west side. However, in more than one scene when driving on Lake Share Drive, the lake is either on the wrong side of the vehicle, or it keeps changing sides of the vehicle.
When George drives Julianne to the airport to fly from New York to Chicago, road signs are seen for U.S. 45, Mannheim Rd., which is in Chicago.
Character error
During Title sequence, the lead Bridesmaid that is 'singing' messes up her words (toward the end of the song). You can see her quickly correct herself.
Kimmy is stated to be 20, yet orders an Amstel Light in the karaoke scene, even though this is forbidden by law to people younger than 21.
Dionne Warwick is Whitney Houston's cousin, not her "aunt" as Mandy claimed.