HBO Max has released a trailers of this much-anticipated reunion of “Harry Potter 20th Anniversary: Return to Hogwarts,” its upcoming special that will reunite the actors and filmmakers from the eight-movie series, which will stream on Jan. 1 next year. 

The event will reunite some of the key actors like Daniel Radcliffe, Rupert Grint and Emma Watson, which was taped at the Warner Bros. Tour Studio in London. It also include the talents from the beloved film series, including Tom Felton, Ralph Fiennes, Helena Bonham Carter, Robbie Coltrane, Jason Isaacs, Gary Oldman, James & Oliver Phelps, Mark Williams, Bonnie Wright, Alfred Enoch, Matthew Lewis and Evanna Lynch. And some of the filmmakers, David Heyman, Chris Columbus, Alfonso Cuarón, Mike Newell and David Yates will also make appearances.

This trailer is capturing the cast looking back on the film series, Watson says, “It feels like no time has passed, and loads of time has passed.” Then, Radcliffe says that something that had scared him was “the implication that the most meaningful thing in our life was done,” and that seeing everyone is “joyous” because he realizes “it wasn’t though.”