In this follow-up to the documentary Naked States, director Arlene Donnelly Nelson follows artist Spencer Tunick as he invites thousands of people of all races, shapes and sizes out of their clothes and into the streets for art's sake. Tunick's yearlong "Nude Adrift" project -- which comprised photographing 6,000 unclothed subjects, some as enormous groups -- was filmed in nine countries on seven continents (including Antarctica).