Alain Delon gives one of his best performances as “The Samurai,” so called in obvious homage to the Japanese masterless ronin who answers only to an internalized code of honor. A killer by contract in the world of Paris nightclubs and hidden bosses, he has a polished, chilling method perfectly suited to Jean-Pierre Melville’s own style: economical and elegant, full of dangerous invention. When Le samouraï was released in the United States in 1972 as The Godson, one of the few critics to notice it was Penelope Gilliatt of the New Yorker. She called Melville “the poet of the implacable” and Le samouraï “a sort of meditation on solitude, embodied in a lonely, rigorous mercenary.”