J.K. Rowling has voiced her strong approval of the first teaser for HBO's upcoming Harry Potter television adaptation.
The author took to X on Thursday to share her reaction with followers, declaring: "It's going to be incredible. I'm so happy with it."
Her comments came as a reply to a fan who had praised the footage as looking "bloody marvellous" and suggested the entire world was eagerly anticipating the series.
Ms Rowling serves as an executive producer on the new show, which will adapt her seven-novel fantasy series across multiple seasons.
Dominic McLaughlin plays the role of Harry Potter
|HBO MAX/WARNER BROS
The first season, comprising eight episodes, will bring Harry Potter and the Philosopher's Stone to screens when it premieres on Christmas Day this year.
Despite Ms Rowling's enthusiasm, audience reaction to the teaser has been sharply divided, with numerous viewers criticising its visual approach.
One social media user complained that the footage lacked the magical quality of the original films, writing: "Looks really well produced, the sets and costumes are great... but I feel zero magic.
“It's missing that little spark. Maybe I'm just too nostalgic for the color grading of the 2001 film." (sic)
JK Rowling has said she is pleased with the first trailer
|HBO MAX/ WARNER BROS
Others questioned why the new adaptation appeared so "comically dark and blue" compared to its predecessor.
The absence of whimsy drew particular criticism, with one viewer noting that nothing about the trailer suggested content aimed at children, despite the source material being PG-rated fantasy novels.
They described it as "perfect for infantilised adults" and labelled the production "millennial slop".
The casting of Paapa Essiedu as Severus Snape has also sparked significant backlash from certain quarters of the fanbase.
Arabella Stanton plays Hermione Granger and Alastair Stout as Ron Weasley
|HBO MAX/ WARNER BROS
The actor, who takes over the role originally portrayed by the late Alan Rickman, has faced hostility over the decision to cast a Black performer in the part.
Mr Essiedu recently disclosed that he has received death threats motivated by racism since his involvement in the project was announced.
Some viewers have framed the casting controversy within broader culture war debates, with one social media user observing that the series faces criticism from multiple directions simultaneously.
They suggested that those on the left would object due to Ms Rowling's involvement, while those on the right would take issue with perceived changes to established characters.
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Ms Rowling's stance on transgender issues continues to cast a shadow over the franchise, with some fans arguing it is impossible to view the work separately from its creator.
"You cannot 'separate the art from the artist' with Harry Potter," one user wrote on X.
"JK Rowling has directly funded harmful legislation to the trans community and directly caused harm to trans people. She uses the money she makes from Harry Potter for that." (sic)
Production on the series commenced in the UK last summer. Francesca Gardiner serves as writer and executive producer, whilst Mark Mylod directs multiple episodes.
Lox Pratt will play school bully Draco Malfoy
|HBO MAX/WARNER BROS
The cast features Dominic McLaughlin as Harry, Alastair Stout as Ron Weasley, and Arabella Stanton as Hermione Granger.
John Lithgow portrays Albus Dumbledore, Janet McTeer plays Minerva McGonagall, and Nick Frost takes on Rubeus Hagrid. Hans Zimmer has signed on as composer.
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