Welcome to Harry Potter Theory. Today, we’re discussing three major differences between the book and film versions of Hermione Granger.
Of course, if you know even a little about the Wizarding World of Harry Potter, you know – or have at least heard of – the name Hermione Granger. One of Harry’s two best friends, Hermione is the highly intelligent Muggle-born witch who has a reputation for her love of books and academia. 
After being sorted into Gryffindor alongside Harry and Ron Weasley, the three develop a close friendship that only grows stronger as their years together at Hogwarts go on. Throughout the series, Hermione spends plenty of time at the Weasley home, along with Harry, and is present during most of Harry’s epic adventures. And, while all of this may be true in both the Harry Potter novels and films, there are actually many major differences when it comes to this main character’s traits.
Naturally, slight differences between a character’s physical appearance and personality are to be expected when translating a story from the page to the screen. It can be a difficult task indeed to adapt the dynamic characteristics of multiple beloved characters, especially, when you’re dealing with a lengthy manuscript. For example, what can be expanded on in 800 to 900 pages of a novel, is incredibly difficult to cram into the confines of a two-hour movie version. And to that end, I’ve often encouraged fans of Harry Potter to, at least to some extent, view the novels and the films as two separate entities. Yes, of course, they are both set in the same Wizarding World universe. And, yes, the main characters from the books are present and accounted for in all of the movies. But, if you want the two stories to be the exact same representations of each other, you will be sadly disappointed. And the depiction of individual characters is no different. HOWEVER, certain liberties taken with the character of Miss Hermione Granger do bother me quite a bit – no matter how I look at it.
So, with that in mind, let’s dig into some of the key differences in Hermione’s character portrayal between the novels and the films.