Harry Potter HBO reboot trailer rewinds the clock on Hogwarts

Remember when Harry Potter was a wide-eyed 11-year-old instead of an angsty teenager or a full-grown adult whose youngest son was old enough for his own adventures? Remember when just mentioning J.K. Rowling wasn’t polarizing and dangerous? HBO and Warner Bros. take us back to that era in the first trailer for HBO’s Harry Potter series, the HBO TV reboot of the Potterverse.