Continuity mistake: When the girls starts having lunch, Sam's arm is raised then suddenly lowered. (00:12:40)
Continuity mistake: Charlotte tells Harry "you changed your mind with the Jewish thing" while she caresses his chest and his hand is lowered. A shot later his hand is suddenly on his chest and his fingers are entwined with Charlotte's.
Continuity mistake: When Charlotte wakes Harry up, his left hand is on his tummy. From a different angle his hand is by his side and he is rising it again.
Continuity mistake: Steve grabs the baby wipes and leaves none in the box. A shot later a wipe is magically sticking out.
Continuity mistake: When Miranda tries to clean her forehead, the baby's head lies on her collarbone. A shot later the head is away and staring at Steve. Then we go back to the first shot and the baby is lying against the collarbone again.
Continuity mistake: The amount of feces on Miranda's forehead changes between the first time she smudges it on her forehead and half a second later when Steve warns her. This happens before the listed mistake that takes place when he wipes the poo off.
Continuity mistake: Charlotte drinks from her glass but her arm is lowered a shot later. (00:05:45)
Continuity mistake: While having dinner with Harry, Charlotte grabs her bread and breaks it in half, then eats a bit. From the opposite angle she is grabbing the whole bread again and breaking it in half again.
Continuity mistake: While having lunch at the Meat Packing District, Sam grabs her lipstick but it disappears a shot later.
Continuity mistake: When Carrie exits the Wall Street subway station, the passers-by on the right are not continuous between shots.
Continuity mistake: When Carrie bumps into the dogs, the dog walker is sometimes on the middle of the streets, others next to the building, others crouching and others standing still. No continuity. (00:01:05)
Continuity mistake: When Carrie is running, the dalmatian is on the right side of the curb. A shot later it's on the left.
Continuity mistake: When Carrie runs late there's a man with a hat next to some flowers half a meter away. She keeps running and the man vanishes, only to reappear seconds later.
Visible crew/equipment: When Charlotte leaves her apartment building on the way to the party, she puts on large sunglasses. You can see what appears to be camera equipment, in the reflection of the plastic lenses. There are two white squares, which look like a camera light and filter screen. (00:22:20)
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.
An american girl in paris (part deux) - S6-E20
Continuity mistake: When Carrie tells Big she misses New York, his hand suddenly appears over her cheek.
An american girl in paris (part deux) - S6-E20
Continuity mistake: Juliette says the restaurant used to be better while holidng her glass close to the table. A shot later it's close to her face and the grip has also changed.
An american girl in paris (part deux) - S6-E20
Continuity mistake: In the pastry shop, the dog is sitting by the edge of the chair. A shot later, a big part of the chair is visible.
A woman's right to shoes (a.k.a. no shoes, no service) - S6-E9
Revealing mistake: When Charlotte and Carrie walk down the street there's a group of bystanders behind watching the filming. One of them is even taking pictures.
The post-it always sticks twice - S6-E7
Continuity mistake: Charlotte puts her hand on Sam's to show her her ring. The position of Sam's hand changes between shots.
Answer: Yes, it is.