A visit has been made to the set of the Harry Potter series, with some reports indicating J.K. Rowling was the visitor, while others suggest it was members of the British royal family, including Prince William and Kate Middleton, who brought their children. The visit's details and purpose are unclear, with conflicting reports about who was involved. The series, an HBO production, is currently in production, with J.K. Rowling having expressed enthusiasm for the project.