Official THE KILLING OF A SACRED DEER Trailer Check out the new THE KILLING OF A SACRED DEER trailer! The film, written and directed by Yorgos Lanthimos (The Lobster), stars Colin Farrell, Nicole Kidman, Alicia Silverstone, Barry Keoghan, and Raffey Cassidy. THE KILLING OF A SACRED DEER will be released in theaters on October 20. Steven, a charismatic surgeon, is forced to make an unthinkable sacrifice after his life starts to fall apart, when the behavior of a teenage boy he has taken under his wing turns sinister.