JK Rowling has apparently already penned a sequel to Fantastic Beasts And Where To Find Them, even though the first instalment hasn't hit cinemas yet.
Director David Yates said the author even has ideas for number three.
He told GSN: "We've done the first one, she's written the second one, she's got ideas for the third one.
"No one quite has ownership of them quite yet, in terms of having a relationship with the material, other than the relationship they'll have with the movie when it comes out. So it's sort of lovely in a way."
David, who has already directed The Legend Of Tarzan, added: "When we adapted the books you would always have to leave out things that you hated leaving out because they didn't quite work within the structure of the storytelling for the movie or the movie would just be far too long.
"With this it's just pure Jo from the first page to the last page."
The author's play Harry Potter And The Cursed-Child is currently storming the West End in previews ahead of a grand opening on July 30.
Fantastic Beasts And Where To Find Them will be released in UK cinemas on November 18.