Watch The New Trailer For The 'Harry Potter' 20th Anniversary Reunion

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The 20th anniversary of Harry Potter and the Sorcerer's Stone came faster than you can say “Wingardium Leviosa.”

To celebrate the grand milestone, the stars of the franchise—including Daniel Radcliffe (Harry Potter), Emma Watson (Hermione Granger), and Rupert Grint (Ron Weasley)—and director Chris Columbus will reunite for the first time in a one-of-a-kind TV special on HBO Max.

Titled Harry Potter 20^th Anniversary: Return to Hogwarts, the retrospective will feature new interviews with the cast and crew to tell “an enchanting making-of story” behind the epic film serie Ns. Here's how to watch.

Where can I watch it online?

Return to Hogwarts drops exclusively on HBO Max on midnight New Year’s Day, Jan. 1, 2022.

Watch on HBO Max

It will also air as a TV special on TBS and Cartoon Network in spring 2022 ahead of the theatrical release of Fantastic Beasts: The Secrets of Dumbledore. We're still waiting on details regarding rollout globally.

Who's in it?

Radcliffe, Watson, and Grint will be joined by other alumni of the Harry Potter franchise. Cast members include Helena Bonham Carter (Bellatrix Lestrange), Robbie Coltrane (Hagrid), Ralph Fiennes (Lord Voldemort), Jason Isaacs (Lucius Malfoy), Gary Oldman (Sirius Black), Imelda Staunton (Dolores Umbridge), Tom Felton (Draco Malfoy), James Phelps (Fred Weasley), Oliver Phelps (George Weasley), Mark Williams (Arthur Weasley), Bonnie Wright (Ginny Weasley), Alfred Enoch (Dean Thomas), Matthew Lewis (Neville Longbottom), Evanna Lynch (Luna Lovegood), Ian Hart (Professor Quirrell), and more, according to HBO Max.

What can we expect?

Much like the 2021 Friends reunion, the program won't introduce any new Harry Potter storylines but will instead feature the cast and crew together with “in-depth interviews and cast conversations,” according to Entertainment Weekly.

To get a better idea of what's to come, watch the full trailer for the reunion below.

Where can I watch all the other Harry Potter movies?

The eight-film franchise is streaming on platforms like HBO Max and Peacock, and is also for purchase on Prime Video.

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