Olivier Theyskens's Spring 2013 collection for Theyskens' Theory was filled with softness and light — but that doesn't mean it was any easier to create than his other clothing. A behind-the-scenes video shot by Theyskens's friend Olivier Bourdon reveals the labor-intensive processes of designing garments, styling runway looks, and prepping models — sometimes sewing the clothes right onto them. A look at how it all came together in the video below.