Watch Gangster Squad HD Movie Online Free Gangster Squad is a 2013 American film noir action film directed by Ruben Fleischer, from a screenplay written by Will Beall and starring Josh Brolin, Ryan Gosling, Nick Nolte, Emma Stone, and Sean Penn.The story is loosely based on the Los Angeles Police Department officers and detectives who formed a group called the "Gangster Squad unit" who attempted to combat Mickey Cohen and his gang during the 1940s and 1950s. It was originally set to be released September 7, 2012,but in the wake of the 2012 Aurora shooting, the release date was changed to January 11, 2013 by Warner Bros. Pictures. When in fact the film, the characters, and the events are mostly fictionalized, the LAPD did have a unit called the "Gangster Squad" which was created when Clemence B. Horrall was the LAPD's Chief of Police. A similar theme is the basis of a 1996 film, Mulholland Falls, and a 2013 television miniseries, Mob City . toolbar bu