Continuity mistake: In the kitchen, Sam has Chinese food in her chopsticks and says "she's like a model." She takes the chopsticks to her mouth, then angle changes and she is picking food again, though this time less amount.
Continuity mistake: While at their friends' place, Carrie holds her glass of wine wth her index finger extended over the bowl. A shot later the grip has changed completely.
Continuity mistake: When Charlotte arrives to visit Sam, the doorman is facing straight and turns his head to the left. A shot later his whole body has turned to the left.
Continuity mistake: At the party, when Samantha is talking to Sean, she holds her glass at breast level, but when his wife arrives it is at mouth level.
Continuity mistake: When Carrie and the guy kiss at Central Park a man in a gabardine walks by fast but disappears in the following shot. Then he reappears seconds later walking slowly.
Continuity mistake: When Peter's wife asks him if Carrie saw his d*ck, he has a mug in his left hand. A shot later it disappears and his arm is lowered, only to reappear in the following shot.
Continuity mistake: When Carrie bumps into naked Peter, his right arm is lowered or raised scratching his ear, depending on the shot.
Continuity mistake: When Carrie is at her friend's place in the Hamptons her left arm is either on or off the table depending on the shot.
Valley of the twenty-something guys - S1-E4
Continuity mistake: Carrie receives a phone call from Samantha and her voice over says she needs her morning Marlboro Light, however, when she picks up her pack of cigarettes, you can see that it is a pack of Merits.
Valley of the twenty-something guys - S1-E4
Continuity mistake: During the scene when Carrie and Sam are in the changing booth at the clothing store, Carrie starts helping Sam take his shirt off. She pulls the outer plaid shirt down quite a bit, revealing his white undershirt. But in the next shot of him, Sam suddenly has the plaid shirt back up around his neck. Then in his next shot, it's back down and the white undershirt is showing again.
Valley of the twenty-something guys - S1-E4
Continuity mistake: When Carrie tells Big to call her, two men walk behind him. Shot changes to Carrie walking away and they suddenly reappear behind Big. Then shot on Big and when Back to Carrie they reappear behind him for a third time.
Valley of the twenty-something guys - S1-E4
Continuity mistake: When Carrie meets Big next to the wobbly table, a man in a grey suit and green shirt walks by behind Carrie. Then disappears, then walks behind her again.
Valley of the twenty-something guys - S1-E4
Continuity mistake: When Carrie checks Sam's pierced tongue she reaches her hand towards it. In the close-up she touches the tongue and then removes her hand, but in the following wide angle her hand is still touching it.
Valley of the twenty-something guys - S1-E4
Continuity mistake: When Carrie checks Sam's phone number written on her arm, the ink is really noticeable in the close-up, but in the following wide angle it is light coloured and almost invisible.
Valley of the twenty-something guys - S1-E4
Continuity mistake: When Sam and Skipper meet, Carrie holds the Martini glass by her mouth but in the immediate shot of her narrating "they liked each other" her arm is down.
The power of female sex - S1-E5
Continuity mistake: Carrie is in the hotel bed from her night with the French Architect, who is just leaving for the Airport. There is a shot of the small table by the bed, with the phone sitting on it. You cannot see any envelope at all resting against the phone, or visible at all. But with the next close-up, suddenly there is a large business-size envelope with her name on it resting prominently against the front of the phone. This envelope was not there previously. (00:14:45)
The power of female sex - S1-E5
Continuity mistake: After Amelita buys Carrie the shoes and Carrie turns to walk out, Amelita is standing right behind her still talking yet when the shot changes to Carrie walking out the door, although we can still hear Amelita chattering, she's no longer standing there or anywhere in sight.
The power of female sex - S1-E5
Continuity mistake: When Mario invites Carrie to Venice he drags her towards him. Shot cuts to Carrie thinking out-loud and now she is away from him. Then shot goes back to her very close to him again.
The power of female sex - S1-E5
Continuity mistake: During breakfast, when Miranda says "high class ho*ker" the coffee pot handle swaps from facing 3 o'clock to 6 o'clock.
The power of female sex - S1-E5
Continuity mistake: While having breakfast at the hotel Miranda grabs the coffee pot twice.
Answer: I'm a long-time fan of the show, having re-watched it many times, and I definitely remember slightly different dialogue at the end of that episode than what's on my DVD. I'm afraid I have no idea why this change might have been made or any other info, but you're not insane.
Purple_Girl