Here's Why Marvel Superheroes are Fighting in Captain America: Civil War

It's rare for the source of a superhero movie's main conflict to be a legal document--it's usually an evil supervillain looking to take over the world. However, the upcoming Captain America: Civil War is different. It centres around an Act to regulate all superpowered activity that causes a big fallout between Marvel's greatest heroes. Now the document in question has been revealed, as part of the items included in the Marvel Cinematic Universe Phase Two Collection Blu-ray box set. Check it out below, via Flickering Myth:

Entitled the Sokovia Accords, the document lists the real names of eight Avengers, including Anthony Stark (Iron Man), Steve Rogers (Captain America), Natasha Romanoff (Black Widow), and Vision (er, Vision). It states that these heroes "shall no longer operate freely or unregulated, but instead operate under the rules, ordinances and governances of the afore mentioned United Nations panel."

The full Sokovia Accords can be seen briefly in the new trailer for Captain America: Civil War, which debuted last week. Within the first 24 hours of release, it set a record for the most number of clicks on a Marvel trailer, clocking up 61 million views. This beats the previous record-holder, Avengers: Age of Ultron's 34 million views--although it was still some way from of Star Wars: The Force Awakens' third trailer, which was watched an amazing 112 million times in a single day in October.

Captain America: Civil War is directed by Joe and Anthony Russo, who helped turn the second Captain America movie, 2014's The Winter Soldier, into a $700 million smash. It stars Chris Evans, Robert Downey, Jr., Anthony Mackie, Scarlett Johansson, Jeremy Renner, Elizabeth Olsen, and Paul Rudd.

The Marvel Cinematic Universe Phase Two Collection Blu-ray box set is released on December 8. It includes the last six Marvel movies to date, namely Iron Man 3, Thor: The Dark World, Captain America: The Winter Soldier, Guardians of the Galaxy, Avengers: Age of Ultron, and Ant-Man.