Continuity mistake: When Samantha and her date are in the health food restaurant, she orders wheatgrass shots. The waiter pours them, filling the cups to the brim and then sets one on the table in front of each of them and we see again in a close up that they are both full up. Yet when Samantha picks up hers to drink, the liquid level has gone down a little way.
Continuity mistake: The people walking behind Trey and Charlotte close to Tiffany's is totally different in the side angle, than in the front shot - check out the African-American woman, for example.
Revealing mistake: When Tray and Charlotte stand by Tyffany's door, bystanders on the right and on the left sneak-in to see the filming.
Continuity mistake: When Sam asks her friends if anyone has had the bad taste semen problem, Miranda's mug is on the table. Half a second later it is close to her mouth.
Continuity mistake: When Carrie debates with Miranda whether to call Big or not, Carrie holds the pillow close to her chest in one shot, but over her thighs in the other.
Answer: Yes, it is.