Question: At Which film festival does Barry Keoghan starring The Killing of a Sacred Deer film won best screenplay award in 2017?
Sentence (from "The Killing of a Sacred Deer"): The Killing of a Sacred Deer is a 2017 psychological horror-thriller film directed by Yorgos Lanthimos, from a screenplay by Lanthimos and Efthymis Filippou.
Relevant evidence: No