Chris Columbus, director of the original Harry Potter films, hails the upcoming HBO series as a "spectacular idea," citing its potential to more faithfully adapt the books. In an interview with People, Columbus explained the limitations imposed by the films' shorter runtimes. He noted that while they "tried to get as much of the book in as possible," the constraints of a two-hour-plus film were significant.
"I think it's a spectacular idea because there’s a certain restriction when you’re making a film," Columbus stated. He pointed out the extended runtime of the first two films, "Our film was two hours and 40 minutes, and the second one was almost as long." He continued, emphasizing the advantage of a series format: "The fact that they have the leisure of [multiple] episodes for each book, I think that's fantastic. You can get all the stuff in the series that we didn't have an opportunity to do... All these great scenes that we just couldn't put in the films."
The April 2023 announcement described the Harry Potter series as a dedicated adaptation of the novels, promising a richer, more detailed narrative than a feature film allows. Succession producers Francesca Gardiner and Mark Mylod are attached to direct and write, with Mylod also having Game of Thrones experience.
Casting is underway for the lead roles of Harry, Hermione, and Ron. Regarding the Dumbledore role, Gary Oldman, who played Sirius Black, humorously suggested his age might be suitable, two decades after his Prisoner of Azkaban debut.
Reports indicate that actor Mark Rylance is a top contender for Dumbledore, maintaining the original films' focus on British talent. This aligns with J.K. Rowling's reported "fairly involved" participation in the casting process.
Production is expected to commence in Spring 2025, with HBO aiming for a 2026 release.