"Gangster Squad" premieres in Los Angeles

Ryan Gosling attends the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles. The film opens nationwide on Jan. 11.

Emma Stone attends the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

Sean Penn attends the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

Josh Brolin arrives for the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

Josh Brolin and Sean Penn arrive at the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

Sean Penn, right, and Josh Brolin attend the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

Nick Nolte attends the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

Ryan Gosling, left, and his mother, Donna, attend the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

Mireielle Enos attends the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

Actress Emma Stone arrives at the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

Actors Emma Stone and Sean Penn arrive at the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

Anthony Mackie attends the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

Ryan Gosling arrives at the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

Ryan Gosling and Austin Abrams arrive at the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

Giovanni Ribisi arrives at the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

Abigail Spencer and Josh Pence arrive at the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

Mireille Enos arrives at the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

Actor Nick Nolte arrives at the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

James Hebert arrives at the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

Actor Robert Patrick arrives at the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

Actress Kim Raver arrives at the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

Actor Danny Masterson arrives at the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

Russell Brand attends the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

Tiny and rapper T.I. arrive at the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

Hip hop artist Kid Cudi arrives at the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

From left, Emma Stone, Sean Penn, Josh Brolin and Mireille Enos arrive at the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.

From left, Robert Patrick, Ryan Gosling, Anthony Mackie, Emma Stone, Sean Penn, Josh Brolin, Mireille Enos, Michael Pena and Giovanni Ribisi attend the premiere of "Gangster Squad" at Grauman's Chinese Theater on Jan. 7, 2013, in Los Angeles.