The singular Roger Corman directs The St. Valentine's Day Massacre (1967), a study of the events-and striking personalities-leading to gangland Chicago's most infamous episode. Jason Robards stars as the fearsome Al Capone, with chilling support from Ralph Meeker, George Segal, and David Canary, all revealed to us in crisp documentary style thanks to a smart script by Howard Browne. Excoriated in its day for its unvarnished violence, it has emerged in recent years as a respected cult favorite.