Pirates of the Caribbean (The Curse of the Black Pearl) - Wrong End of the Ship
When Captain Jack appears from below deck during the battle between the Interceptor and the Black Pearl he catches the rope on the left side of the screen, but when he swings across to the Interceptor you see him swinging from the right side of the screen.
The actor Johnny Depp noticed this himself
when he mentioned it in the commentary to
View the movie with commentary