Factual error: This film takes place on New Year's eve in the year 1981, yet between a couple of scenes, it shows the streets of New York filled with modern-day cars and taxis.
Continuity mistake: In the first closeup of the record player, there are albums behind it. In the next shot, Monica is arranging the crab dip and, in the background, there is nothing behind the record player. (00:04:30)
Continuity mistake: As we're watching from outside as Kevin and Lucy talk about how long they've known each other, Lucy's black jacket is off her shoulders. In the subsequent close up, the jacket is fully on. (00:42:00)
Continuity mistake: When Caitlyn and Bridget are in the cab, the shots of them show the glitter ball rotating clockwise. The shots of the taxi driver show the glitter ball rotating anticlockwise. (01:17:00)
Continuity mistake: At the Indian restaurant, the lipstick stain on the front of Cindy's dress has moved about 6 inches down and to the left. (00:41:20)
Continuity mistake: Throughout the movie, the hostess of the party's gloves vary in length. While the one on her left hand stays the same, the one on her right hand is different in nearly every shot we see her in.
