Keira Knightley shines in The Lives of Others at the Adelphi Theatre. Critics praise her performance in Robert Icke's Stasi drama, describing it as unsettling and a must-see. The play is a complex stage adaptation of the Oscar-winning thriller. Tickets and showtimes are obtainable. The Guardian, Financial Times, and London Evening Standard have commended her acting prowess and the unsettling nature of the production.