Paramount Pictures has released a new featurette for Jon M. Chu's action sequel G.I. Joe Retaliation. This behind-the-scenes look features Channing Tatum breaking down his character Duke and discussing his time on set with the cast. We also have an international poster featuring Dwayne Johnson as Roadblock, following yesterday's one-sheet that showcased Bruce Willis' Joe Colton. Check out the video and poster for director Jon M. Chu's action-thriller.