Helen McCrory, the Peaky Blinders actor who died from cancer on Friday, “swore friends to secrecy” as she underwent treatment, her friend Carrie Cracknell said in a radio tribute. Cracknell, who directed McCrory in a 2014 production of Medea, said the performer did not want her illness overshadowing her family and professional life. McCrory’s husband, Damian Lewis, announced the news that his...