Hogwarts is about to sound very different.
HBO is preparing to send audiences back to the Wizarding World with a new television adaptation of J.K. Rowling’s seven Harry Potter novels. The eight-episode first season, Harry Potter and the Philosopher’s Stone, will debut at Christmas 2026.
Dominic McLaughlin, Alastair Stout, and Arabella Stanton lead the series as Harry Potter, Ron Weasley, and Hermione Granger. Production began at Warner Bros. Studios Leavesden in July 2025, with Francesca Gardiner serving as showrunner and Mark Mylod directing multiple episodes.
The reboot is already replacing much of the visual language established by Warner Bros.’ eight-film franchise. Hogwarts has been redesigned, costumes have changed, and characters omitted from the movies are being restored.
Now, one of the films’ most recognizable elements is also being left behind.
HBO Is Starting Over With Harry Potter’s Sound
John Williams composed the scores for the first three Harry Potter films, beginning with Harry Potter and the Sorcerer’s Stone in 2001. His work introduced Hedwig’s Theme, the celesta led melody that rapidly became the musical signature of the franchise.
Williams stepped away after Harry Potter and the Prisoner of Azkaban in 2004, but his influence remained. Patrick Doyle, Nicholas Hooper, and Alexandre Desplat each inherited the series, with Williams’ themes continuing to appear in different forms across the later movies.
Harry Potter and the Deathly Hallows – Part 2 even returned to Leaving Hogwarts for its 2011 epilogue, linking the final movie directly back to the ending of Sorcerer’s Stone a decade earlier.
HBO’s adaptation is taking a very different approach.
Hans Zimmer, Kara Talve, and Anže Rozman of Bleeding Fingers Music are creating a new score for the series. HBO officially announced the trio in January, tasking them with establishing a new musical identity for its version of Rowling’s world.
Zimmer has now made clear that he does not intend to build that sound around Williams’ work.
Speaking to Collider, he said, “I can’t write like John Williams, but even if I could, I would try to stay away as far as possible and try to be original.”
That effectively sidelines Hedwig’s Theme as the reboot’s defining sound. HBO has not separately announced that the melody can never appear, but Zimmer’s comments make clear that viewers should expect an original score rather than another reworking of Williams’ famous theme.
It is familiar territory for Zimmer. He faced a similar problem when scoring Man of Steel in 2013, decades after Williams’ Superman theme had become inseparable from the character.
“When I was doing ‘Man of Steel,’ which, of course, is Superman, for three months I was running around going, ‘I don’t know. I can’t do this. I can’t do this because it’s John Williams. John Williams is — it’s brilliant! It’s brilliant!'” Zimmer said.
“Zack [Snyder, the film's director] phoned me and said, ‘Can I come down?’ I go, ‘I don’t really have anything,’ and he goes, ‘Well, I’ll be there on Tuesday.’ So I came up with a tune, but I still was incredibly worried about it.”
He added: “Zack just said the simplest thing to me. He said, ‘Hans, it was just a movie. This is just a movie.’ And that was so liberating.
“It’s just a movie, and my life is all about making music for movies, which I do because I love it. I love the movies, and I love having fun with it.”
HBO Is Rebuilding Hogwarts From the Ground Up
The soundtrack is only one part of HBO’s wider reset. The series is being structured around one novel per season, giving Gardiner and her writers significantly more room for characters, subplots, and backstories shortened or removed from the original films.
The movies inevitably condensed Rowling’s novels for feature-length runtimes. Peeves disappeared entirely, SPEW was removed, the Marauders’ history was heavily trimmed, and several of Dumbledore’s lessons about Voldemort’s past vanished from Harry Potter and the Half-Blood Prince.
Peeves is among the material now being restored. Peter Serafinowicz will play the Hogwarts poltergeist, finally bringing the character properly to screen after Rik Mayall filmed scenes for the 2001 movie that were ultimately cut.
The adaptation is also leaning more heavily into the books’ original chronology. Season one takes place from 1991 to 1992, with the production designing its Muggle wardrobe around the period instead of updating Harry’s pre-Hogwarts life for a modern setting.
Visually, HBO is also avoiding a straightforward recreation of the Daniel Radcliffe films.
Production designer Mara LePere Schloop has developed a new version of Hogwarts, while early footage has shown redesigned school uniforms and Quidditch robes. The Gryffindor team’s costumes include numbered robes, unlike those seen in the original movie series.
The new format also leaves more space to develop Philosopher’s Stone. HBO’s first season will span eight episodes, compared to the 2001 film’s roughly two and a half hour runtime.
Early material has already suggested that the series will expand beyond scenes shown in the movie, including more of Harry’s life before Hogwarts and an onscreen appearance from Nicolas Flamel, who remained offscreen throughout the original film adaptation.
And for this version of Harry Potter, Hogwarts will need a new theme of its own.
Will you miss Hedwig's Theme?
