Continuity: During the wedding reception, George (Steve Martin) is called outside to meet with the police because there are too many cars parked in the street. Notice that the police car is curbside completely surrounded by cars. In fact, the whole street is packed with cars, making one wonder how the police car got up to the house.

Continuity: When Annie and her family are in the living room while Franc and his assistant are designing the reception, her hair is down. A couple shots later, her hair is tied up and she is wearing different clothes.

Continuity: In the scene where Franc (Martin Short) is looking at the house to see the changes for the wedding and they are talking about the menu, Kimberly Williams starts with her hair in a ponytail, then for a split second her hair is half up in a barrette and then its back to a pony tail (or vice versa).

Continuity: When Steve Martin is going berserk in the grocery store he is wearing black socks. In the next scene in the jail cell, he's wearing white socks.

Factual error: In the scene where the whole Banks family sits down to dinner, George asks 'Who wants to go to a Laker game on Thursday?' According to the timeline of the film, this is sometime in August, and the Lakers are in off-season.

Continuity: In the scene where Annie visits Franc's shop for the first time with her parents, they are sitting on the couch in front of the window and you see a man in a tan suit walk past, then the frame switches and then switches back to them and that same man walks past again.

Continuity: In the scene where the to-be-bride, Annie, runs in the front door upset, George and Nina, her parents, are standing in the dining room looking through all of the tacky presents Annie and Brian have received. George is holding a silver tea set on a platter. In every shot that flashes back and forth between he and Annie, the teapot seems to turn itself in a different direction on the platter.

Continuity: During their first visit to meet Franc George, Nina and Annie are sitting on the couch.   When they are first discussing the date of the wedding and the camera is focused on them you hear Franc close his appt. book, but when the camera goes back to Franc you hear the same sound as he closes the book again.

Continuity: From the outside, the Banks' house has two living room windows. On the inside there are three windows.

Other: In George's flashback of Annie, all of the pictures from her as a baby until graduation are from George's point of view. And then there's the scene of Annie sliding down the banister after her return from Rome, and George is in the scene. Then in the next image, she and Brian are kissing and it's from George's point of view again.

Continuity: When Nina is sitting at the table during brunch with the in-laws (and George is running around the pool outside) in the wide shots her hands are up under her chin, and in the closeups they're flat on the table.

Continuity: Either a mistake, or Nina Banks is really delusional: She specifically states that they don't own any fancy cars, but George drives (I think) a Porsche. If that's not a fancy car, I don't know what she thinks is. [The car is not a Porsche - it's an Austin Healey 3000.]

Continuity: During the scene where Franc and the other consultants are planning the wedding in the Banks' living room, Steve Martin tries to show the construction worker how to open the French doors. The jacket of his (old) tux splits as he is struggling with the door. If you watch the scene is slo-mo, the back seam of the jacket splits as Steve Martin is bending down to reach the door knob, the seam "reconnects", and then splits again, the second time with the ripping fabric sound effect.