[Ginkasa]

Yeah, the Patronus was the biggest departure from the books. Harry was never capable of mastering the Expecto Patronum spell during his lesson with Lupin like in the movie.

The Patronus was also supposed to take the form of some animal or spirit that was embedded in the person's soul for some reason or another. In the book when Harry was finally able to summon his Patronus at the end it took the form of a stag and rode down the dementors.

It was then revealed that Harry's father chose the stag when he became an animagi.

Its all connected and completely removed from the movie.


*shrugs and walks away*