Continuity mistake: When Carrie leaves lunch with Big the little rolled paper on the table changes positions between shots.
Continuity mistake: When Carrie cries "Engaged!" her hands are holding her head, but from the opposite angle they disappear.
Continuity mistake: When Carrie says she hates Blood, sweat and tears, Big's hand swaps between being on the table or on the edge of the table or off the table, between shots.
Twenty-something girls vs. thirty-something women - S2-E17
Deliberate mistake: When the girls are on the beach, Carrie's narration says "It was a sunny day", but instead it is a grey and cloudy one. Surely the filming schedule was tight and they had to cope with that day's weather.
Continuity mistake: During breakfast, when Charlotte is telling about her boyfriend falling asleep and asks her friends to please help her, Carrie's arms position is inconsistent between the side and front shots: Up/down, arms crossed with left hand over right arm/ left hand vanished with right arm bare. (00:13:13 - 00:13:59)
Continuity mistake: When Carrie is ordering her breakfast Charlotte is looking at her, her right hand on her head. Her fingers are extended or not depending on the angle.
Continuity mistake: When Miranda is making her bed she is holding the pillow cover with one or two hands depending on the shot.
Continuity mistake: After the cute smoker-guy scene, Carrie is on Miranda's bed and her hands swap between crossed or not between shots.
Continuity mistake: When the father says the boy needs a stitch he puts his hand around the boy's face, but a shot later it disappears.
Continuity mistake: When Miranda enters the gym's elevator for the second time the length of her towel and the way it folds around her neck differs between the first and second shot.
Continuity mistake: When the girls eat a salad there's a woman with a pink T-shirt behind Sam who walks from right to left. In the close-up of Sam grabbing the salt shaker the woman in pink reappears: stands up and repeats the previous movements. Seconds later she walks by twice when Carrie talks about Tom Cruise.
Continuity mistake: When Wesley asks Charlotte how many lnog relationships she has had, his left arm is either up or down depediinng on the shot.
Continuity mistake: Way into the muffins scene, Wesley takes the cup to his lips twice.
Continuity mistake: When Charlotte prepares muffins, Wesley grabs a cup, but in the opposite angle the cup lies flat on the table. This swaps back and forth.
Continuity mistake: When Miranda is in the bench at the park the light on her body is clear and homogeneous, but in the wide angle of the boy bringing her a bug, it's dark and shady. This changes back and forth.
Continuity mistake: When the breakfast scene is about to end, Miranda stabs her fork on the food. A shot later she has vanished from the spot.
Continuity mistake: The amount of tomatoes on Miranda's dish during breakfast keeps increasing/deceasing randomly between shots.
Continuity mistake: When Miranda tells the girls that she met someone at the gym she grabs a mug. A shot later it's on the table.
Continuity mistake: When Miranda is in the gym there's woman walking by behind her. In the aerial angle she disappears.
Continuity mistake: After the kid hits Miranda with a stick she takes her hand to her head in pain. When she arrives to the bench she lowers her hand, but in the close-up it's on her head again.
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