Martin Scorsese has made 12 documentaries throughout his career, training his lens on such varied subjects as the Vietnam War ("Street Scenes"), Italian cinema ("My Voyage to Italy") and Bob Dylan ("No Direction Home"). His latest, "The 50 Year Argument," spotlights The New York Review of Books. The documentary chronicles the influential publication's five-decade history and the avenue it took to become a forerunner in thought-provoking journalism.