'Turn Every Page' Documents the Relationship Between Writer Robert Caro and His Editor Robert Gottlieb

Many New Yorkers have read (or plan to read) The Power Broker, the Pulitzer Prize winning biography of Robert Moses from Robert Caro. But a key force behind that book, and the rest of Caro's biographies, is his editor, Robert Gottlieb. The new documentary "Turn Every Page-The Adventures of Robert Caro and Robert Gottlieb" explores their 50 year working relationship and friendship. Director Lizzie Gottlieb, daughter of Robert Gottlieb, joins us to discuss the film, which is in theaters now.