Michael Peña’s about to go all gangsta…

The 36-year-old Mexican American actor is set to appear in the highly anticipated film Gangster Squad.

As seen in the just-released trailer, the upcoming crime film chronicles the Los Angeles Police Department’s fight to keep Mickey Cohen and the east coast mafia out of LA in the 1940s and 1950s.

Peña, who will be starring as Cesar Chavez in a biopic about the legendary Latino labor leader and civil rights activist, portrays detective Navidad Ramirez in Gangster Squad.

Along with Peña, the cast includes Sean Penn as Cohen, Ryan Gosling, Josh Brolin, Emma Stone, Mireille Enos, Anthony Mackie, Nick Nolte and Giovanni Ribisi.

The film is set to be released on September 7, 2012 by Warner Bros. Pictures.