The agony and the 'ex'tasy - S4-E1
Plot hole: In the closing scene in Big's car, he asks Carrie how her birthday was, then says, "So how old are you?" She replies, "How old are you?" And they coyly don't reveal their "age box." But they have known each other for 3 years/seasons at this point - dated on/off for 2 years, had an affair, and are just friends now. There is no way they wouldn't know each other's ages. This exchange only existed to benefit the plot of this episode - it makes no sense given how long they've known each other.
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.
Continuity mistake: When Carrie arrives backstage at the fashion show, she's wearing a black dress with a long jewelled necklace that is wrapped once around her neck and hanging down on both sides of her chest, like a scarf. When the fashion show starts, the necklace strands are tied together in a big knot/wrapped around her neck more. Then, when she's about to get in a cab home, they are untied/hanging down again.
Other mistake: When the girls are at a restaurant right after Carrie leaves the Hamptons, Charlotte picks up her glass and puts her mouth on the straw as if she's drinking, but the liquid in the glass doesn't budge.
Audio problem: When Samantha reveals her spanx, there is the clear voice of a man (crew) saying something inaudible. (00:11:30)
Other mistake: At Steve and Miranda's wedding, Charlotte is holding baby Brady, who looks younger than a year (around 8 months) and is using a pacifier. But in 2 episodes prior, they celebrated Brady's 1st birthday and the actor who played Brady looked way older than the Brady at the wedding. I know they cast different kids, but it seemed as if Brady aged backwards.
Answer: Yes, it is.