It’s the rare gangster film that has at its center a painting by a 19th-century French artist, in this case Edouard Manet. “Chez Tortoni” (1875) is his portrait of an unknown Parisian man sitting at a cafe table drawing in a sketchbook. With a half-finished glass of beer at his side, he looks at us with a keen sense of concentration, the rakish tilt of his tophat being a perfect rhyme to the angle of his pencil. In typical Manet fashion, the canvas is as curt as it is incisive.