India, Sept. 2 -- Hogwarts is opening its doors again, but the biggest challenge facing HBO's Harry Potter series is not introducing audiences to the Wizarding World. Fans already know it by heart. The new trailer for Harry Potter and the Philosopher's Stone offers the most detailed look yet at HBO's ambitious television reboot, introducing Dominic McLaughlin as Harry Potter, Alastair Stout as Ron Weasley and Arabella Stanton as Hermione Granger. It also gives viewers a closer look at the new Hogwarts, its professors and several moments that longtime readers will immediately recognise.

And yet, watching the trailer comes with an unavoidable question: can this version make the story feel fresh when the original films remain so deeply embe...