In the comic books, Tony Stark becomes the Pro-Registration figurehead, while Captain America leads the Anti-Registration group, which is later known as "The Secret Avengers". Spider-Man is caught in the middle having differences with Iron Man, but also not wanting to go against the law. At first, he was convinced to join Pro-Registration by Iron Man and revealed his identity to the world. After Spider-Man assisted Iron Man in several missions (and witnessed a hero die as a result of the war along with a partnership with supervillains), he called it quits and switched to Anti-Registration with Cap. This was in addition to almost dying at the hands of Jack O'Lantern and the Hobgoblin whom Iron Man was using in an effort to increase their numbers. It was not until Punisher rescued him that he came to his senses. Promotional art of the film gave a first look at the teams. While this art does belong to Marvel, one cannot rule out the possibility of a hero switching sides. The team members are broken down as such:
Anti-Registration:
Captain America,
Scarlet Witch,
Falcon,
Winter Soldier,
Hawkeye,
Ant-Man,
Agent 13
Pro-Registration: Iron Man,
War Machine,
Vision,
Black Widow,
Black Panther,
Spider-Man
In this film, the equivalent of the Superhuman Registration Act will be called the Sokovia Accords as it was triggered by the destruction of the city in Avengers: Age of Ultron. It states that all superheroes will need to get approval to be deployed to the field after each event or activity has been reviewed and/or approved by the United Nations.