"The great thing about the [first] book is that Grandpa Joe tells various stories of Willy Wonka from when he was younger," King said in a chat with Zavvi. "Which leaves room for more stories ...

But now their bond is set to get even closer, as the very same team of people who brought JK Rowling’s wizarding world to cinemas everywhere are set to work on a brand-new Willy Wonka movie.