At Which film festival does Barry Keoghan starring The Killing of a Sacred Deer film won best screenplay award in 2017?
Barry Keoghan:  He has appeared in the films "Dunkirk" along with Mark Rylance, Tom Hardy, Cillian Murphy, Kenneth Branagh, Tom Glynn-Carney; "The Killing of a Sacred Deer" with Nicole Kidman, Colin Farrell and Alicia Silverstone; and "Trespass Against Us" with Michael Fassbender and Brendan Gleeson. The Killing of a Sacred Deer:  At Cannes, Lanthimos and Filippou won the Best Screenplay award.
i don't know