A consummate workaholic who helmed vibrant films well into his eighties, Sidney Lumet laid claim to being one of the most revered and most imitated directors of all time. Films like "Twelve Angry Men" (1957), "Dog Day Afternoon" (1975), "Network" (1976) and "The Verdict" (1982) were more than just classics - they became cultural fixtures that transcended generational demands. Because of his visual economy, strong direction of actors, vigorous storytelling and use of the camera to accent themes, Lumet produced a body of work that could only be defined as extraordinary. By refusing to "go Hollywood," he instead became strongly identified with the city of his youth, New York, the place where he filmed a great majority of his films. In fact, Lumet's use of the city became more than just location - he turned New York into a character just as vital and alive as Frank Serpico, Howard Beale or Sonny Wortzik. But it was the social realism which permeated his greatest work that truly defined Lumet - the themes of youthful idealism beaten down by corruption and the hopelessness of inept social institutions allowed him to produce several trenchant and potent films that no other director could have made.