READ MORE: Baz Luhrmann Passed On Harry Styles In ‘Elvis’ Because “He’s Already An Icon”īased on the 2012 novel of the same name by Bethan Roberts, “My Policeman” stars Styles, Emma Corrin, and David Dawson as a trio whose mishaps in love span decades. After a small role in Christopher Nolan‘s “ Dunkirk‘ and a mid-credits cameo in Chloé Zhao‘s “ Eternals,” Harry Styles‘ film career begins in earnest this October when he stars in Olivia Wilde‘s “ Don’t Worry Darling.” But Styles leads another film out this Fall: “ My Policeman,” a romantic drama about closeted gay romance in the 1950s UK.