This slip up occurs toward the end of the movie. They show the judge and the shereiff in the courtroom. And you notice in the back that the sheriff has his stick threw the door so no one can get in. Well then they cut to the seen of the dukes and the rest of the town trying to enter the room but it's stuck. Then they show inside the courtroom and the stick is falling out and in the next shot it's back up again.. You can really notice it after you see it.