In Chamber of Secrets, Harry jumps out of his bedroom window into the Weasley's flying car. Uncle Vernon leans out the window and grabs Harry's skinny rightr ankle. At the end of the movie, Harry lifts his right pant leg to show Lucius Malfoy where Dobby's sock came from. The right ankle had doubled in thickness. Amazing! All that food at Hogwarts. You think it would stick to your ribs.

In the Sorcerer's Stone, the fat lady's picture swings out. In Prisoner of Azkaban, the fat lady's picture swings into the Gryffindor Common Room.

Mistakes or magic? That is the question.