While

'Avengers: Age of Ultron' keeps exploding the box office,

'Captain America: Civil War' has commenced production. Featuring a huge cast of familiar heroes (Cap, Iron Man, Black Widow, Hawkeye, Falcon, War Machine, Bucky Barnes) and newcomers (Black Panther, Ant-Man, Vision, Scarlet Witch) entwined in a classic comic storyline, 'Civil War' promises to be a game-changer for the Marvel Universe. Here's an inside peek at the making of the film, directed by Joe and Anthony Russo for a May 6, 2016 release.