In celebration of this week's San Diego Comic Con, and the most fun action film of the summer: The Expendables 3, we have brand new Comic Con posters and, if you missed it earlier this morning, a kick-ass behind-the-scenes featurette! Make sure you take a look at all your favorite action heroes in the stunning Comic Con posters and featurette below and join the fun when it hits theaters this August 15!In The Expendables 3, Barney, Christmas and the rest of the team comes face-to-face with Conrad Stonebanks, who years ago co-founded The Expendables with Barney.