FASHIONPhotos: #FlatGate Takes Over at Cannesby Vanessa Lawrence05.21.15Giovanna Battaglia, Cristina Ehrlich, Leslie Fremar, and Elizabeth Stewart respond to the footwear controversy at the Cannes Film Festival.1Inès de la Fressange at the Cannes Film Festival in May. Photograph by George Pimentel/WireImage.2Oxfords at Lanvin fall 2014. Courtesy of Lanvin.3Karlie Kloss wears flat sandals at the Cannes Film Festival on May 14, 2014. Photo by Getty Images.4Cara Delevingne wears sneakers at the Chanel Couture Spring 2014 show. Photo by Getty Images.5Photo by Giovanna Battaglia.6A barefoot Lena Dunham at the Met Costume Institute Gala in May. © Splash News/Splash News/Corbis.