Continuity mistake: Charlotte says her young daughter just learned the word no. The older girl is facing the right side, but a shot later from a different angle she's facing the opposite side. (00:23:01)
Continuity mistake: When Sam asks who Erin is, her right hand swaps between being raised or not between shots. (00:23:18)
Continuity mistake: When Erin arrives, Sam's grip on the glass of water changes between one shot and the very next one, a mere frame later. (00:23:35)
Continuity mistake: When Erin is bathing Rose, Erin's hair is dry but in the close-up it's wet. It isn't until several seconds later that she gets showered all over. (00:29:40)
Continuity mistake: During dinner, Big's right arm swaps between raised or lowered depending on the shot, this changes back and forth. (00:34:05)
Continuity mistake: When the girls are having breakfast, Miranda is pinching food and eating it, then a shot later her hand is lowered, but a shot later the fork is gone. All in a matter of two seconds. (00:49:10)
Continuity mistake: When Big tells Carrie he wants a place of his own, the pink ribbon on the shelf keeps changing positions between shots. (00:52:47)
Continuity mistake: In the bathroom, Big says "I feel like I'm disappointing you" and touches his face with his right hand. A shot later his arm is lowered. (00:54:20)
Continuity mistake: In the bar in the plane, Miranda puts down her pencil. Close up of her hands and she is putting it down again. Wide angle of her and it's back in her hand. (00:57:57)
Continuity mistake: In the scene where Carrie is telling the girls about kissing Aidan, her necklace (a crescent moon) keeps switching sides. (01:48:45)
Factual error: The day Carrie arrives in NY: June 11, 1986 was a Wednesday not a Tuesday.
Character mistake: In the scene where Carrie is printing an article she has written, the title reads: The Terrible Two's. A successful, educated writer would never have used an apostrophe to pluralize a word. Ever.
Continuity mistake: In the scene where Carrie is in the elevator, arguing with Charlotte and Miranda who are in the hallway, Miranda keeps changing from being fully made-up to almost no make-up at all.
Continuity mistake: When the girls are eating lunch in the desert, and the hot Australian guy pulls up and chats the girls up, they show where he came from and the tire tracks in the sand. However, the tracks don't go back that far, so the guy really wasn't driving all around the sand dunes like Carrie's narration says.
Continuity mistake: In the conclusive, third act of the film, Charlotte and Miranda are sipping drinks and discussing the difficulties of motherhood. During the scene, Charlotte's drink varies from nearly empty to entirely full and then back to being nearly empty over the course of only a few frames.
Continuity mistake: When Carrie goes to the changing room with Stan, her boutonnière is labeled Carrie Preston. When she questioned this, Stan says the wedding planner said all couples should be listed by their married name. But in the shot of the program she is listed as Carrie Bradshaw under the best man.
Character mistake: When Miranda is scheduling the trip to Abu Dhabi with the girls, she says they have to go within three weeks or the next month will be the hottest month. However, on the first night when Carrie can't sleep, her alarm clock says August 26. August is the hottest month in the middle east.
Continuity mistake: After Charlotte's cellphone falls on the sand, it keeps changing positions depending on the shot.
Continuity mistake: When the officer opens the passport and the condoms fall on the table, their positions change between shots.
Audio problem: When Mr. Big and Carrie are talking in the bathroom, from a shot from behind while he talks his jaw moves up and down, but for several seconds he is quiet but his jaw keeps moving. Surely the audio belongs to the front shots.
Answer: In the script.