
Continuity mistake: Once Jerry gets Tom's attention by smacking him over the head with the violin bow, they look down and see the tub that Hermione will be jumping into. This view shows it completely dry with no water, and the bottom of the tub being once solid piece. Then after Tom slides down the rope and dashes to look in for a closer look, it is show that there are now some small water puddles in the tub, and the bottom is made of many boards. (00:09:40)