Quintessential New York director Sidney Lumet, helmer of such classics as Serpico, Dog Day Afternoon and Network, died Saturday morning of lymphoma at his home. He was 86. Born in Philadelphia, Lumet grew up in New York and filmed most of his movies in his beloved city. He started off in TV, making his feature debut with the 1957 courtroom drama 12 Angry Men starring Henry Fonda, which earned him the first of five Oscar nominations. Lumet’s last film was 2007′s Before the Devil Know You’re Dead. In 2005, he was awarded an honorary Oscar. Deadline’s Pete Hammond is preparing a retrospective of Lumet’s work for posting later today. Watch for it.