<Li> Bill Camp as Matthew, an anesthesiologist </Li> <P> On May 11, 2016, it was announced that Colin Farrell had been cast in the film, with Yorgos Lanthimos directing from a screenplay he had written with Efthymis Filipou . Film4 Productions and Element Pictures produced the project . In June 2016, Nicole Kidman was cast in the film, and in August 2016, Alicia Silverstone, Raffey Cassidy, Bill Camp, Barry Keoghan, and Sunny Suljic also joined . </P> <P> As of August 23, 2016, the film had begun principal photography in Cincinnati, filming at The Christ Hospital . It was also shot in the Hyde Park and Northside neighborhoods . The school scenes in the film were shot at Roger Bacon High School . </P> <P> In May 2016, A24 acquired U.S. distribution rights to the film . The same month, Haut et Court acquired French rights . It had its world premiere at the Cannes Film Festival on May 22, 2017 . Lanthimos and Filippou won the Best Screenplay award at the festival . </P>

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