An international trailer for director Ruben Fleischer's Gangster Squad has come online and can be watched using the player below. The September 7 release stars Josh Brolin, Ryan Gosling, Nick Nolte, Robert Patrick, Michael Peņa, Giovanni Ribisi, Anthony Mackie, Emma Stone and Sean Penn. It's described as follows:

Los Angeles, 1949. Ruthless, Brooklyn-born mob king Mickey Cohen (Sean Penn) runs the show in this town, reaping the ill-gotten gains from the drugs, the guns, the prostitutes and--if he has his way--every wire bet placed west of Chicago. And he does it all with the protection of not only his own paid goons, but also the police and the politicians who are under his control. It's enough to intimidate even the bravest, street-hardened cop...except, perhaps, for the small, secret crew of LAPD outsiders led by Sgt. John O'Mara (Josh Brolin) and Jerry Wooters (Ryan Gosling), who come together to try to tear Cohen's world apart. "The Gangster Squad" is a colorful retelling of events surrounding the LAPD's efforts to take back their nascent city from one of the most dangerous mafia bosses of all time.