12 Biggest Retcons In Harry Potter Movies

4. The Magical Moving Whomping Willow

In a similar vein as Hagrid's Hut moving for The Prisoner Of Azkaban the Whomping Willow changes position too.

It moves from the Training Grounds within the Hogwarts grounds in its first appearance to a large distance away from the castle on some craggy land in The Prisoner Of Azkaban.

The tree also changes how it looks between its first and second appearances, resembling a willow far more in The Prisoner Of Azkaban.