On the Frontline: An Inside Look at Captain America's BattlegroundsMovie

Marvel Studios' chief Kevin Feige, the Russo brothers, and key members of the cast and crew offer insight into the production, the development of the sequel, the tone and style the filmmakers aimed for from the start, the intensity of the action and handheld camera work, and the evolution of Cap and his appearances since 'Captain America: The First Avenger' and 'The Avengers'.