Audio problem: When Samantha and Carrie are in their room on the train, Samantha starts to pour herself a glass of champagne. We hear it pouring for a few seconds until it sounds like the glass is full but when she puts the bottle down, there's barely anything in her glass.
Audio problem: When Big calls Carrie and is leaving a message after Carrie has long since moved to Paris, Charlotte is there. She picks up the phone and says "Hi, it's Charlotte", but her mouth does not match the words. Her mouth says something like "Hey" not "Hi".