The cast of Harry Potter is reuniting to celebrate the anniversary of the movie series – and here’s everything you need to know about it. The entertainment industry is defined by trends, and one that has gained force in recent months is reunion specials. After a couple of TV shows setting the example, Warner Bros. has prepared a Harry Potter reunion event to celebrate the anniversary of the release of the first movie in the saga, thus also celebrating the legacy of the novels, movies, and the Wizarding World in general.

J.K. Rowling’s Harry Potter book series was published between 1997 and 2007, and it didn’t take long for Hollywood to set eyes on it and bring it to the big screen. The Harry Potter saga was released between 2001 and 2011 (with the final book, Harry Potter and the Deathly Hallows, divided into two movies), and it expanded on the novels’ success and the worldwide phenomenon of the Wizarding World. The Harry Potter movie series also boosted the careers of its main cast, though they will always be remembered for their roles in the story of “The Boy Who Lived” and Lord Voldemort, the darkest wizard of all.

Related: Harry Potter Needs A New Sequel With The Original Stars More Than Spin-Offs

Now, the cast of Harry Potter is reuniting in a special event appropriately titled Harry Potter 20th Anniversary: Return to Hogwarts to celebrate the anniversary of the beginning of the saga, and here’s everything you need to know about this special reunion.

The Harry Potter Reunion’s Release Date On HBO Max

Harry Potter 20th Anniversary Return to Hogwarts

As mentioned above, the Harry Potter reunion special comes to celebrate the anniversary of the release of Harry Potter and the Philosopher's Stone and all things related to this particular universe, but it won’t arrive in 2021. The Harry Potter reunion has been given a January 1st, 2022 release date, so it will be a New Year’s treat (or belated Christmas present) for fans.

How To Watch The Harry Potter Reunion

Harry Potter Reunion Special Daily Prophet

With Warner Bros. now having its own streaming platform thanks to HBO Max, it was only natural that the Harry Potter reunion was planned to be released on the platform. Unfortunately for those who don’t wish to commit to yet another streaming service, you will need a subscription to HBO Max to watch it, and this platform doesn’t offer a free trial – however, some companies offer HBO Max for free through internet plans, so be sure to check if yours applies.

Harry Potter Reunion Cast: Which Actors Are Confirmed

Harry Potter reunion invitation

What makes the Harry Potter reunion special so exciting is the long list of guests that will join the fun. Of course, the golden trio themselves – Daniel Radcliffe, Rupert Grint, and Emma Watson – are at the front and center, and they will be joined by Helena Bonham Carter, Robbie Coltrane, Ralph Fiennes, Jason Isaacs, Gary Oldman, Tom Felton, James Phelps, Oliver Phelps, Mark Williams, Bonnie Wright, Alfred Enoch, Matthew Lewis, and Evanna Lynch, though the teaser revealed there will be “many more”.

Is J.K. Rowling Part Of The Harry Potter Reunion?

Jk Rowling HBO Max Harry potter reunion

One name that was left out of the confirmed ones for the Harry Potter reunion is that of the creator of the Wizarding World: J.K. Rowling. An official reason for her absence hasn’t been revealed, so it’s speculated that she’s either busy working on other projects or Warner Bros. wants to avoid backlash as Rowling isn’t exactly a favorite right now following the anti-trans comments she has made on social media. Rowling will appear in archive footage throughout the reunion, but she won’t be part of any of the new content.

What Reveals To Expect From The Harry Potter Reunion

Hogwarts at night in Harry Potter and the Sorcerer's Stone

As the title of the event says, the Harry Potter cast is expected to return to Hogwarts, where they will tell some of their behind-the-scenes stories and will surely reveal a couple of secrets about the making of the Harry Potter saga. Fans, then, can expect to learn more about the process of bringing the characters, places, and stories from the Harry Potter books to the big screen, the personal experiences of each actor throughout the saga, the dynamics between them, and will get to see some of the saga’s most iconic locations one more time.

Next: Every Upcoming Harry Potter Movie & TV Show