Sidney Lumet, the director of such immortal films as 12 Angry Men, Network, and Dog Day Afternoon, has passed away today. Though he is not celebrated as much as Scorsese, Coppola, or Kubrick, Lumet was prolific in his own right directing into his 80's. His most recent work is Before the Devil Knows You're Dead and he completed over 40 films during his career. Goodbye, Mr. Lumet, you will be missed.