Now on Broadway: Harry Potter and The Shattered Box-Office Record

The drama, based on the world of wizardry literary series, is working its magic in previews before its opening later this month

Even weeks before it opens on Broadway, “Harry Potter and the Cursed Child” is breaking box-office records.

The two-part drama, which brings the popular literary franchise to the stage, set an all-time weekly sales mark for a Broadway play, according to the Broadway League, the trade group that tracks the industry.

While still in previews,...