The Harry Potter franchise is a global sensation, with generations of fans invested in the books, theme parks, stage plays, and (of course) the Harry Potter movies. Fans of the films (which are streaming with a Max subscription) were recently treated to some mind-blowing news when it was revealed that Tom Felton would be playing Draco Malfoy in The Cursed Child on Broadway.

HBO dropped another first look at the upcoming series, this time of Nick Frost as gentle giant and Hogwarts gamekeeper Rubeus Hagrid.

HBO's 'Harry Potter' TV show recasts all of the Hogwarts characters with new actors. See who's who in this cast guide.

Oopsies. Looks like Isaacs had no idea which spell he was saying during Chamber of Secrets, as he wasn't all that familiar with Harry Potter when filming his first appearance as Lucius Malfoy. And it was ultimately advice from a crew member that accidentally started this years-long debate about the killing curse among Potterheads.