NEW YORK, NY - MARCH 09: Lily James arrives for the "Late Show with David Letterman" at Ed Sullivan Theater on March 9, 2015 in New York City. (Photo by Donna Ward/Getty Images)
NEW YORK, NY - MARCH 09: Lily James arrives for the "Late Show with David Letterman" at Ed Sullivan Theater on March 9, 2015 in New York City. (Photo by Donna Ward/Getty Images)