'Gangster Squad' First Trailer Lands Online

The first trailer for director Ruben Fleischer‘s (Zombieland) crime drama Gangster Squad officially lands online. The film stars Sean Penn as gangster Mickey Cohen, and centers on the Los Angeles task force (headed by Josh Brolin) assembled to bring him to justice in 1940s. The cast is incredible, and Fleischer’s visual flair from his previous films looks to have matured and evolved for this more dramatic story. Above all, though, Gangster Squad looks like a lot of fun. It’s easy for period pieces such as this to be drowned by solemnity and fracture by the end of the day, but fortunately enough Fleischer hasn’t forgotten that there’s a lot of fun to be had in 1940s L.A. Additionally, the different personalities on display in the ensemble is pretty magnificent. Between this, Argo, and the bunch of movies slated for this fall/winter, 2012 is shaping up to be something special. Hit the jump for the trailer and the official synopsis.

The film's stellar cast includes Josh Brolin, Ryan Gosling, Emma Stone, Sean Penn, Nick Nolte, Michael Peña, Anthony Mackie, and Giovanni Ribisi. Gangster Squad opens later this year.

Here’s the official synopsis:

"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."