Overview

• Photos and short clips shared on social media show Lithgow in full Dumbledore costume on a Cornwall beach, complete with long white beard, robes and glasses.
• On-set shots indicate he referenced cue cards during the scene, and additional angles circulated widely via accounts such as Wizarding World Direct.
• Filming began in July 2025 and has taken place across multiple U.K. locations, including Cornwall, Hertfordshire and Bedfordshire.
• HBO has stated the series will adapt one book per season, with Francesca Gardiner as showrunner, Mark Mylod directing episodes and J.K. Rowling among the executive producers.
• Fans are speculating the beach setup could tie to a first-book moment involving Nicolas Flamel that the films did not depict, though the storyline remains unconfirmed.