Harry Potter TV spin-off 'in the works', JK Rowling set to be on board

A Harry Potter TV spin-off is reported to be in the works.

J.K. Rowling's seven books on the boy wizard and his adventures at Hogwarts were turned into an eight-film franchise that grossed over £6.5billion worldwide. That has been followed by a further three Fantastic Beasts films, which prequel Harry, Ron Weasley, and Hermione Grainger's time at the wizarding school.

And now rumors are circling that the British author has held talks with Warner Bros bosses about further content opportunities. Any TV spin-off of the wizarding world would be most likely to end up on Warner Bros' streaming service HBO, Mirror reports.

Rumors are circling on both sides of the Atlantic that Rowling has held talks with new Warner Brothers chief David Zaslav, although the entertainment giant has refused to comment on the speculation. However, there are claims that writers are already working on the premise with a source telling the publication: "The Potter spin-off is being talked about as a fact by people who work for HBO."

Lawyer Zaslav reportedly spent the early stages of his Warner Bros career on a listening tour after joining the company in April and would presumably have been keen to meet Rowling, who holds the intellectual property rights to Harry Potter, as a matter of urgency. Rowling's intellectual property status gives her a say on any decisions across the franchise, including merchandising, theme parks and cinematic projects.