# HBO Harry Potter series production and casting > Live situation record from CLSTR: https://clstr.news/situations/hbo-harry-potter-series-development > Updated: 2026-09-12T02:04:04.000Z. Sources: 226. Developments: 23. Filming for HBO’s live‑action Harry Potter adaptation began in summer 2025 at Warner Bros. Studios Leavesden. The series, which aims to adapt one book per season, is scheduled to premiere on 25 December 2026 via HBO Max. The inaugural eight-episode season, ‘Harry Potter and the Philosopher’s Stone’, is expected to conclude on 14 February 2027, with new episodes released every Friday. Warner Bros. Discovery and HBO have outlined a ten-year plan to produce seven seasons, with each season corresponding to one of the seven original novels. This format is intended to allow for greater depth and character development than previous film adaptations, specifically noting the potential for improved development for characters such as Neville Longbottom. The core young cast features Dominic McLaughlin (Harry Potter), Alastair Stout (Ron Weasley), and Arabella Stanton (Hermione Granger). The adult ensemble includes John Lithgow as Albus Dumbledore, Janet McTeer as Minerva McGonagall, Paapa Essiedu as Severus Snape, Nick Frost as Rubeus Hagrid, and Warwick Davis as Filius Flitwick. Kit Harington has also joined as Gilderoy Lockhart. Following the release of a teaser trailer in September 2026, the production has sparked debate among fans regarding its faithfulness to the source material. While the footage highlights book-accurate details, other changes have drawn criticism, such as “redesigned, minimalist Hogwarts house crests”. Recent developments indicate that ten actors will return to the Wizarding World, including Jamie Campbell Bower as the young Gellert Grindelwald. This production occurs amid public debate regarding creator J. K. Rowling and her comments on gender identity. Additionally, reports suggest Warner Bros. executives have scrapped initial scripts for the second season, ‘Harry Potter and the Chamber of Secrets’, to refine plot points, delaying filming from August to October. ## Claims - The Hogwarts student schedule for first-year Gryffindors includes sporting fixtures and games. (corroborated by 2 sources) - HBO released a new trailer for ‘Harry Potter and the Sorcerer’s Stone’ on September 2. (single source) - Warner and HBO are pursuing a long-term ten-year plan for the series. (single source) - The series is planned to have seven seasons, with one season for each book. (single source) - The new trailer features extended scenes with characters including Dumbledore, Snape, McGonagall, and Hagrid. (single source) ## Timeline ### 2026-09-12: Gary Oldman predicts HBO's Harry Potter series will be more satisfying than films Gary Oldman suggests the upcoming HBO Harry Potter series will be more satisfying than the films due to its ability to provide a more faithful, detailed adaptation of the original books. 14 sources. https://clstr.news/cluster/gary-oldman-predicts-hbos-harry-potter-series-will-be-more-satisfying-than-films ### 2026-09-10: HBO Harry Potter reboot undergoes script revisions and title changes HBO's Harry Potter reboot is undergoing major revisions, including scrapped scripts for season two and a return to the original 'Philosopher’s Stone' title for the first installment. 2 sources. https://clstr.news/cluster/hbo-harry-potter-reboot-undergoes-script-revisions-and-title-changes ### 2026-09-08: HBO Harry Potter series confirms returning cast amid author controversy HBO is launching a new Harry Potter series as a faithful novel adaptation, featuring ten returning actors amid ongoing controversy surrounding author J. K. Rowling. 3 sources. https://clstr.news/cluster/hbo-harry-potter-series-confirms-returning-cast-amid-author-controversy ### 2026-09-06: HBO Harry Potter series confirms central trio casting HBO has finalized casting for its Harry Potter television series, with Dominic McLaughlin, Arabella Stanton, and Alastair Stout set to play the central trio throughout all seven seasons. 2 sources. https://clstr.news/cluster/hbo-harry-potter-series-confirms-central-trio-casting ### 2026-09-05: HBO announces new Harry Potter series for 2026 HBO will release a new Harry Potter series starting December 25, 2026. The first season will adapt ‘The Sorcerer’s Stone’ with an eight-episode run and a confirmed second season. 2 sources. https://clstr.news/cluster/hbo-announces-new-harry-potter-series-for-2026 ### 2026-09-05: HBO releases new trailer for Harry Potter television reboot HBO has released new trailers for its Harry Potter television reboot, which will adapt each book into a dedicated season featuring a new cast led by Dominic McLaughlin. 3 sources. https://clstr.news/cluster/hbo-releases-new-trailer-for-harry-potter-television-reboot ### 2026-09-05: HBO Harry Potter series sparks fan debate over book accuracy A new HBO Harry Potter series is sparking debate among fans, offering more book-accurate scenes while facing criticism over redesigned house crests and specific casting and character choices. 4 sources. https://clstr.news/cluster/hbo-harry-potter-series-to-implement-book-accurate-changes ### 2026-09-03: HBO releases new trailers and casting details for Harry Potter series HBO has released new trailers and casting news for its Harry Potter TV series, set to premiere on December 25, 2026, featuring a new cast led by Dominic McLaughlin. 41 sources. https://clstr.news/cluster/hbo-releases-new-trailer-for-harry-potter-television-series ### 2026-09-01: Snapchat and HBO Max partner for Harry Potter digital activations Snapchat and HBO Max are launching AR Lenses, Bitmoji fashion, and real-world fan events in the US and UK to promote the upcoming Harry Potter series premiering this December. 2 sources. https://clstr.news/cluster/snapchat-and-hbo-max-partner-for-harry-potter-digital-activations ### 2026-08-31: HBO releases new trailers for Harry Potter TV series HBO has released new trailers for its Harry Potter TV series, set to premiere on December 25, 2026. The adaptation features a new cast and aims for greater fidelity to the original books. 148 sources. https://clstr.news/cluster/harry-potter-franchise-updates-sorting-ceremony-and-hogwarts-express-lore ### 2026-08-21: Harry Potter franchise announces HBO series and film re-release The Harry Potter franchise expands with an HBO Max series set to premiere in December 2026 and a 25th-anniversary theatrical re-release of the original film in Spain starting August 2026. 3 sources. https://clstr.news/cluster/harry-potter-franchise-announces-hbo-series-and-film-re-release ### 2026-08-16: Harry Potter series set for December 2026 release on HBO Max The new Harry Potter series is set to debut on HBO Max on December 25, 2026, featuring an eight-episode first season that adapts the original story from the beginning. 3 sources. https://clstr.news/cluster/harry-potter-series-set-for-december-2026-release-on-hbo-max ### 2026-08-14: Harry Potter franchise sees new YouTube livestream and HBO series anticipation Harry Potter fans can currently stream the films for free via an official YouTube livestream, while anticipation grows for the upcoming HBO series adaptation of the book franchise. 2 sources. https://clstr.news/cluster/harry-potter-franchise-sees-new-youtube-livestream-and-hbo-series-anticipation ### 2026-08-08: HBO reveals details for new Harry Potter series HBO's new 'Harry Potter' series is set to premiere in Christmas 2026, featuring an eight-episode first season filmed at Warner Bros. Studios Leavesden and various UK locations. 5 sources. https://clstr.news/cluster/hbo-reveals-details-for-new-harry-potter-series ### 2026-08-03: HBO's Harry Potter TV series set for Christmas 2026 debut HBO's Harry Potter series will debut on HBO Max Christmas 2026, with a second season filming in August and a cast led by Dominic McLaughlin, Alastair Stout and Arabella Stanton. 2 sources. https://clstr.news/cluster/hbos-harry-potter-tv-series-set-for-christmas-2026-debut ### 2026-07-28: HBO’s Harry Potter series launches with record streaming budget HBO’s upcoming Harry Potter series, with a record‑breaking streaming budget, will feature a new cast, rebuilt Hogwarts and a darker visual style across its seasons. 2 sources. https://clstr.news/cluster/hbos-harry-potter-series-launches-with-record-streaming-budget ### 2026-07-25: Harry Potter franchise launches child‑actor schooling plan and announces Guatemala ‘Hogwarts Sinfónico’ concert HBO's Harry Potter series sets up temporary schooling for child actors while a ‘Hogwarts Sinfónico’ concert is slated for Guatemala’s Teatro Nacional. 3 sources. https://clstr.news/cluster/harry-potter-franchise-launches-childactor-schooling-plan-and-announces-guatemala-hogwarts-sinfnico- ### 2026-07-21: Harry Potter HBO Max Series Faces Brutal Filming Schedule for Child Actors The Harry Potter HBO Max series required a rapid shooting schedule due to child‑actor hour limits, prompting a nearby temporary school; lead stars earn $660k each, with release set for Dec 25 2026. 9 sources. https://clstr.news/cluster/harry-potter-hbo-max-series-faces-brutal-filming-schedule-for-child-actors ### 2026-07-19: HBO's Harry Potter series confronts tough child‑actor schedule amid record budget HBO's Harry Potter series, debuting Dec 25 2026, faces a grueling child‑actor schedule limited to 90‑minute shoots and carries the biggest budget ever for a streaming series. 10 sources. https://clstr.news/cluster/hbo-revamps-harry-potter-series-production-amid-childactor-constraints ### 2026-07-07: HBO Max Harry Potter series faces casting changes and new character direction HBO Max's Harry Potter series deals with an actress exiting the Ginny Weasley role, launches a new casting call, and adds a deeper portrayal of Minister Cornelius Fudge by Bertie Carvel. 3 sources. https://clstr.news/cluster/hbo-max-harry-potter-series-faces-casting-changes-and-new-character-direction ### 2026-07-03: HBO launches new UK casting for Ginny Weasley and unveils alternate Hogwarts crest HBO reopened UK casting for Ginny Weasley after the original actress quit and revealed a new simplified Hogwarts crest, prompting fan debate. Season 1 premieres 25 Dec 2026 on HBO/HBO Max. 2 sources. https://clstr.news/cluster/hbo-launches-new-uk-casting-for-ginny-weasley-and-unveils-alternate-hogwarts-crest ### 2026-07-02: Harry Potter series second season delayed over Ginny Weasley recast HBO's Harry Potter second season is delayed as it re‑casts Ginny Weasley, seeking a new UK child actress after Gracie Cochrane's exit. 2 sources. https://clstr.news/cluster/harry-potter-series-second-season-delayed-over-ginny-weasley-recast ### 2026-06-05: HBO starts casting for second season of Harry Potter series HBO orders a second Harry Potter season ahead of the first’s debut and begins casting, targeting roles such as Kasper Krauwel, Ginny and the future Tom Riddle. 4 sources. https://clstr.news/cluster/hbo-starts-casting-for-second-season-of-harry-potter-series --- Cite as: HBO Harry Potter series production and casting. CLSTR, https://clstr.news/situations/hbo-harry-potter-series-development