Overview

• Photos posted on X by fan and update accounts show John Lithgow in full Dumbledore costume on a beach, confirming on‑location filming in Cornwall.
• Production began in July and has continued across multiple U.K. sites, with recent shoots also reported in Hertfordshire and Bedfordshire.
• HBO’s adaptation is structured as seven seasons covering one J.K. Rowling novel each, led by showrunner Francesca Gardiner with Mark Mylod directing and Rowling as executive producer.
• The recast ensemble features newcomers Dominic McLaughlin, Arabella Stanton and Alastair Stout as Harry, Hermione and Ron, alongside Janet McTeer, Paapa Essiedu and Nick Frost in key adult roles.
• Observers noted Lithgow reading what appeared to be spell prompts, and some fans speculated the beach setup could reflect book material omitted from the films, though the scene remains unconfirmed.