Where has the Sidney Lumet who made "Before the Devil Knows You're Dead" been hiding himself? Now 83, the legendary director had lost his way in recent years; the epic moral street scenes of "Dog Day Afternoon," "Serpico," and "Prince of the City" seemed to have given way to a long run of mediocrity, from 1993's "Guilty as Sin" to 2006's "Find Me Guilty."
With his new movie, though, Lumet seems to have rediscovered his storytelling innocence. He has also discovered digital filmmaking and has spoken in recent interviews of how the lightweight equipment and small crews took him back to his lithe, improvisatory work for live television during the 1950s. "Before the Devil Knows You're Dead" - the title comes from the back half of an Irish toast - is compact, nasty, and altogether wonderful, a tale of brotherly greed and New York comeuppance that shows an old dog dusting off old tricks using new technology.