Here is the New York Times obituary of Sidney Lumet. This is a superb summary of his films, the genius of Lumet as a director was the power of story over style (Network, Serpico, Dog Day Afternoon, 12 Angry Men, The Pawnbroker etc.) The breadth of stories is truly stunning, and in death, you recognise the amazing stories covered in his career, as well as a deep seated love of New York itself. There are some lovely anecdotes here, Lumet is an engaging speaker on the subject, and his summary of his craft at the end is priceless. A director, and body of work to be treasured.