Rowling gives voice to movie for a cause

J.K. Rowling came to town for a movie and a cause.

The British author was onstage at Carnegie Hall on Saturday night to introduce an advance screening of Fantastic Beasts and Where to Find Them, a Nov 18 release that she adapted from her Harry Potter spinoff book of the same name.

The screening was a fundraiser for Lumos, a nonprofit foundation Rowling started a decade ago to help institutionalized children worldwide be reunited with their families.