After the death of hundreds of innocent civilians caught in a battle between the New Warriors and Nitro, the government passes into law the Super Human. The Marvel Cinematic Universe (MCU) films are an American series of superhero films, based on characters that appear in publications by Marvel Comics. The films have been in production since , and in that time Marvel Captain America: Civil War () is the first film in the franchise's Phase Three, and is followed Phase One: Avengers Assembled · Phase Two · Phase Three. SPOILER ALERT: The following article contains spoilers for Captain America: Civil War. If you have not yet seen the film, and don't wish to know about any.