PARIS, FRANCE - JUNE 17: US Writer John Green and model Cara Delevingne attend the Paper Towns " La Face Cachee De Margo " Photocall In Paris on June 17, 2015 in Paris, France. (Photo by Dominique Charriau/WireImage)
PARIS, FRANCE - JUNE 17: US Writer John Green and model Cara Delevingne attend the Paper Towns " La Face Cachee De Margo " Photocall In Paris on June 17, 2015 in Paris, France. (Photo by Dominique Charriau/WireImage)