Continuity mistake: When at WB Studios, the position of the paper on Carrie's windshield is close to the brim in one shot, and away in the following.
Continuity mistake: After the WB Studios guard puts a paper on Carrie's windshield, a grey car is driving parallel to hers. A shot later the car is behind Carrie's.
Continuity mistake: When Carrie arrives at WB Studios, the guard has no paper on his hand, but one suddenly appears in the following shot.
Continuity mistake: When Carrie arrives at WB Studio there's a red car exiting that disappears in the following shot.
Continuity mistake: When Sarah Michelle Gellar asks Carrie to guess, Sarah has her right arm under her chin, but it swaps to lowered in further shots.
Continuity mistake: When Sarah Michelle Gellar says she loves Carrie's shoes, Carrie's right arm is up. A shot later it's lowered.
Continuity mistake: Sarah Michelle Gellar's left arm is resting on the counter or not. Depending on the shot this changes back and forth.
Continuity mistake: When Mr. Dildo leaves the bar, the waiter in orange is on the left side. A shot later he is on the right side of the counter.
Continuity mistake: After Charlotte twirls her drink swaps hands between shots.
Continuity mistake: When breakfasting, Sam pinches a blackberry but it disappears half a second later.
What goes around comes around - S3-E17
Continuity mistake: Trey hits the last tennis ball in the basket but a shot later another ball appears.
The real me - S4-E2
Continuity mistake: When Sam puts the contact sheets on the table, Charlotte's menu disappears.
The agony and the 'ex'tasy - S4-E1
Continuity mistake: Big's tie is tucked inside his jacket, but loose in the rest of the shots.
The agony and the 'ex'tasy - S4-E1
Continuity mistake: Inside Big's car, Carrie lowers her cup, but a shot later it's raised.
Ghost town - S4-E5
Continuity mistake: When Carrie puts her invitation on the table, Sam picks it up twice.
The real me - S4-E2
Continuity mistake: Heidi Klum puts on an earring but a shot later her arm is lowered.
The real me - S4-E2
Continuity mistake: When Miranda eats her salad, the fork swaps hands between shots.
The real me - S4-E2
Continuity mistake: Anthony's golden necklace suddenly disappears before the show.
Continuity mistake: Books on top of Charlotte's fireplace fall down between shots. (00:10:02)
The real me - S4-E2
Continuity mistake: Before the fashion show, Oscar's cigarette swaps hands.
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