Plot hole: After Carrie misses the Staten Island Ferry, Bill Kelly suddenly drives up in his own car to offer her a ride home. She accepts, and gets in the car. He then asks her 'how do they get off the island' as if he has no idea of what roads to take. But he has obviously driven his own car TO Staten Island, so he should know the way back. (00:27:50)
Continuity mistake: During this scene when Samantha is confronting her new assistant, the office set-up is completely different than before, when Nina G. was working for her. The assistant office space is much larger, glass desk, different angle, next to small conference room instead of Samantha's office, etc.; obviously not the same office set as previously used. Yet Samantha has not changed offices at all during this time period, as it wasn't too long ago when she fired Nina G. Something as major as changing offices would definitely have been mentioned in the plot (as changing apartments always is); and there hasn't been enough time since she fired Nina G. (00:13:45)
Continuity mistake: When Carrie is in Big's kitchen, and hears Natasha come home, she tries to leave in a hurry. She puts on her blue levi jacket, so it's about halfway on with her left arm in the sleeve. But in the next shot of her, Carrie is suddenly wearing only her pink bra and carrying the blue jacket. As she unlocks the door and starts running down the stairs, she throws on the blue levi jacket for the second time. (00:25:15)
Continuity mistake: When Carrie is lying on her bed, she is wearing yellow pants over a green top. The top portion of her pants is unbuttoned/unzipped as she moves. But after she picks up the phone to call Big, she is sitting up on her bed, and her pants are suddenly buttoned/zipped completely up. There was no opportunity in this sequence for her to have closed her pants. (00:12:15)
Revealing mistake: When the transvestite is throwing eggs at Samantha's window, she is holding the cardboard egg container in her left hand. She keeps throwing eggs, but you can tell by the way she is holding the egg container that it is really empty. It flops down vertically from her hand, and there is no way eggs would be able to remain in the egg crate by holding it in that manner.