Book Hermione vs. Movie Hermione

The point wasn't that you shouldn't ever change anything in an adaptation of a book, it was that if you do change something, whether it be to add humor or shorten the story or whatever, it shouldn't be completely against character for them to do it. As an extreme example, if you had a book character that is the physical embodiment of PETA, you wouldn't make them harm an animal for a joke in the movie. By all means add the joke if you think its funny, but have another character do it, one that might actually have done it in the book.

There were some big words you probably wouldn't have understood so it's best if you didnt read it anyway