, D.J. Cotrona as the beret-wearing Flint , Adrianne Palicki as Lady Jaye and Dwayne "The Rock" Johnson as heavy machine gunner and aspiring chef Roadblock . G.I. Joe 2 opens June 29, 2012. Enos joins Gangster Squad ; Bening and Dillon in Imogene >> Related: G.I. Joe: Retaliation Gangster Squad