Turns out it was the world premiere of “Harry Potter and the Deathly Hallows: Part 2,” the final installment in that film series. (The kids decked out in old-fashioned school uniforms should have been a clue.)
While most of the fans were no doubt there to get a glimpse of Daniel Radcliffe, Harry himself, the consensus in Friday morning’s newspapers was that Emma Watson may have stolen the show. Appearing on the red carpet in a sweeping pale gray gown designed by Oscar de la Renta, her hair cut short in a pixielike bob, Ms. Watson continued her transformation from geeky tween film star to fashion icon, a journey that recently included a glamorous cover shot in the current issue of American Vogue.
Later that evening, the 22-year-old actress did a quick change and attended the after-party in a sparkly knee-length Elie Saab dress from the designer’s spring 2011 couture collection.