Wait, what?

In the Harry Potter franchise, Helena Bonham Carter plays Bellatrix Lestrange, of course.  But if you’ll remember, there’s a scene in Deathly Hallows — the one where they break into Gringotts — in which Hermione takes some polyjuice potion in order to transform into Bellatrix.  Naturally, Emma Watson wouldn’t be filming those scenes — Carter would.

The actress told MTV recently that the scenes were great fun to film:

“The best bit about being Bellatrix in this one is also because I got to pretend to be Hermione,” she added of a pivotal scene that has the evil witch’s identity being assumed by Harry’s friend in order to gain access to Gringotts Wizarding Bank, which holds Hufflepuff’s cup — and a part of Voldemort’s soul. “Because Hermione takes polyjuice potion and gets to look like Bellatrix.”…

“It was great fun,” she said of the scene. “[I was] looking at Dan [Radcliffe] and Rupert [Grint] and they were treating me as if I was 17.”

Carter also reveals that all of her scenes take place in Part II of Deathly Hallows — which is a pretty big clue in terms of where they’re going to split the book up.  The scene in which she tortures Hermione happens around the midpoint of the book, but it’ll be in the second film.