Johnny Flynn, who plays Lucius Malfoy in HBO's new Harry Potter series, stated that the first season will have a total runtime of approximately 10 hours. HBO has not officially confirmed this figure, and the exact duration remains subject to official announcement.
This claim was reported while Flynn was attending the London Film Festival. Earlier rumors suggested the first season would be around 8 hours long; Flynn's mention of 10 hours is also an estimate, not the final specifications announced by HBO.
The first season was previously said to adapt The Philosopher's Stone across eight episodes, with Flynn's Lucius appearing in the season. David Heyman, who was involved in the film adaptations, believes that the longer episode count allows for a deeper exploration of characters and their emotions, but this is not yet a confirmed adaptation plan.
The listed release date is December 25. The total runtime of the first season still awaits official confirmation from HBO, with the number of episodes and individual episode lengths yet to be announced.