Revealing mistake: In the scene where King Arthur expounds on the joy of his kingdom, he has a Band-Aid on the back of his neck. (00:21:00)
Revealing mistake: In the beginning when Mrs. Meers goes into the elevator, you can see that the elevator floor is a continuation of the room floor, just with a strip across it.
Revealing mistake: During the pie fight sequence Brenda is obviously wearing a wig as her hair suddenly becomes twice as thick as it was before.
Revealing mistake: After Scott and Tom switch places, during the drive down to the hotel, in some close-ups there's black tape covering the motorcycle's chrome trim. (00:06:35 - 00:07:10)
Revealing mistake: When Dr Dolittle is talking to the parrot and it raises its left leg, you can see a piece of string running past Dolittle's head used to raise its leg.