LONDON, ENGLAND - JULY 13: Prince Harry hosts a reception attended by Dunkirk veterans ahead of the "Dunkirk" World Premiere at Kensington Palace on July 13, 2017 in London, England. (Photo by Eamonn M. McCormack - WPA Pool/Getty Images)
LONDON, ENGLAND - JULY 13: Prince Harry hosts a reception attended by Dunkirk veterans ahead of the "Dunkirk" World Premiere at Kensington Palace on July 13, 2017 in London, England. (Photo by Eamonn M. McCormack - WPA Pool/Getty Images)