The Irish actor, who spent several years in foster care, stars in competition entry 'The Killing of a Sacred Deer' ahead of his turn in <PERSON>'s 'Dunkirk': ``I try to use that history that I have. I have a different story to tell. Dunkirk Cast, <PERSON>, Movie Tv, <PERSON>, <PERSON>, Many Men, Male Beauty, Cannes, <PERSON>