Warner Bros. has debuted a new featurette for Gangster Squad, director Ruben Fleischer's gangster drama about an elite L.A.P.D. unit trying to shut down the infamous Mickey Cohen (Sean Penn). This video includes behind-the-scenes footage from the set, and interviews with Ryan Gosling, Anthony Mackie, Michael Peña, and Giovanni Ribisi all discussing how this will be the 21st Century's ultimate gangster movie, as it takes the genre to new heights.