British designer Matthew Williamson opened a new store in New York in conjunction with his fall 2009 runway show. What a week! Fashion director Harriet Mays Powell visited with Williamson in his store — “It’s not a shop, it’s an experience,” he says — and backstage. Watch the video to see which look was the designer’s favorite and what Lindsay Lohan wore to his opening.

Watch a slideshow of Matthew Williamson's fall 2009 collection.