The Hogwarts Express notably transports students to the school, but Prisoner of Azkaban sees Remus Lupin along for the ride, and here’s why.

One of the many characters introduced in this installment is Remus Lupin, who becomes Harry's Defense Against the Dark Arts teacher. But before school starts, Harry, Ron and Hermione meet Remus ...

Nick Frost, Paapa Essiedu, Luke Thallon and Paul Whitehouse are all part of the first batch of six actors officially locked ...

That's likely the same skeleton seen years later when Quirinus Quirrell, Gilderoy Lockhart and Remus Lupin were the DADA teachers (the fake Mad-Eye Moody did not have the skeleton there ...