Ryan Gosling is ready to do for the tommy gun what he did for the hammer. The first trailer for Gangster Squad is here with all your modern favorites. Josh Brolin and Gosling star as the heads of a group of cops turned gangster killers with their sights set on Sean Penn’s Mickey Cohen. Anyway I think that’s Sean Penn. Looks more like when Johnny Knoxville and Spike Jonze play pranks disguised as old people on Jackass.