There’s little debate that Robert De Niro is one of the greatest screen actors of his generation, perhaps of all time--if not, in fact, the greatest. His work, particularly in the first 20 years of his career, is unparalleled. Mean Streets, the Godfather Part II, Taxi Driver, the Deer Hunter, and Raging Bull all dazzled moviegoers and critics alike, displaying a talent the likes of which had rarely--if ever--been seen. De Niro became known for his deep involvement in his characters, assuming that role completely into his own life, resulting in extraordinary, chameleonic performances. Yet little is known about the off-screen De Niro--he is an intensely private man, whose rare public appearances are often marked by inarticulateness and palpable awkwardness. It can be almost painful to watch at times, in powerful contrast to his confident movie personae. In this elegant and compelling biography, bestselling writer Shawn Levy writes of these many De Niros--the characters and the...