Michael Caine stars as an old-age pensioner in a hellish London council estate who turns vigilante after his best friend is murdered by drug-dealing punks. Clint Eastwood got to this idea first with Gran Torino (2008), and his angry geezer was a less sympathetic character, allowing the filmmaker to interrogate the vigilante genre in a changing America. First-time director Daniel Barber doesn’t attempt anything like that here, sticking to the usual crescendo of punishment that’s reversed in a cathartic bloodletting. But Caine is magnificent as the title character, combining the sentiment of his more recent screen persona with the steely resolve he exhibited as an action hero in the 60s and 70s. With Emily Mortimer.