Months later, Columbus was proven exactly right.

HBO has released the first trailer for its upcoming “Harry Potter” series, inviting audiences to return to the Wizarding World with a fresh take on the iconic series.

The trailer quickly introduced all the major characters — including Harry (Dominic McLaughlin), Hermione Granger (Arabella Stanton), Ron Weasley (Alastair Stout), Albus Dumbledore (John Lithgow), Seve...