Continuity mistake: When Carrie is reading the magazine and Aiden punches a hole through her wall, the hole looks to be about 4 feet from the corner of the wall. But after Carrie gets up and runs into the other apartment to confront Aiden, the hole in the other side of the wall is suddenly about 8 feet from the same corner, much further away. (00:12:55)
Visible crew/equipment: When Carrie crosses the street with Miranda after Miranda's sonogram, she turns while talking and a mic pack is visible half in the waistband of her dress.
Revealing mistake: When Aidan and Carrie shower, some sort of screen or towel briefly appears by their waists to add for some privacy and avoid their private body parts (or any garment covering them) being exposed.
Continuity mistake: After Miranda uses the sonogram as a coaster she holds it from the lower part, but when the angle changes she is holding the upper part.
Continuity mistake: When Carrie tells Aidan to stop hammering the wall he has dust on his T-shirt, which magically disappears in subsequent shots. After Carrie confesses, dust reappears.
Continuity mistake: While making a hole on the wall, Aidan has the sledge hammer resting on his shoulder, but from a different angle his arm is resting by his side.
Continuity mistake: While wearing the wedding dress, Carrie says she can't breathe and raises both arms close to her neck, but a shot later only one arm is raised.
Continuity mistake: After Carrie and Miranda dress the same and exit the fitting room, Carrie holds Miranda's hand. A shot later Carrie is away, hand loose and she is holding it again.
Continuity mistake: When Carrie and Miranda arrive at the wedding dress store two Caucasian women stand on the right, behind them. Then they are suddenly on the left. Half a second later, two Afro-American women have taken their place.
Continuity mistake: When Carrie and Miranda go the buy the wedding dress, the clerk's hands are either on top of a book or next to its edge, depending on the shot.
Continuity mistake: After the sonogram, while Carrie and Miranda walk, bystanders stare at the filming, check the old lady with a pink T-shirt on the right, bending her neck, and the woman with a cell phone on the left.
Continuity mistake: In the shower, Aidan's slick hair swaps to messed up in a split second. Water couldn't have done it and neither could he, for his hands were busy soaping his body.
Continuity mistake: Magda holds the sonogram from the lower left corner, but a shot later she is holding the upper left one.
Continuity mistake: At the ball, Richard takes a sip with his right hand, but from a different angle it's his left.
Continuity mistake: During brunch, when Miranda asks "an unpleasant question" a fork suddenly appears in her hand.
Continuity mistake: The clerk at the wedding dress store closes the book next to her, but a shot later it's open.
Continuity mistake: When Miranda feels a kick the towel on the sink changes positions between shots.
Continuity mistake: Aidan gets in the shower and raises his left arm. A shot later it's lowered.
Answer: A popular brand of sexual lubricant. See http://www.k-y.com/index.jsp.
J I Cohen