Captain America: Civil War featurette (Marvel Studios “Phase Three” behind-the-scenes launcher)
"The cast and crew discuss the journey that leads to the events of Marvel's "Captain America: Civil War," available in the Marvel Cinematic Universe Phase 2 Box Set."I personally enjoy the notion that there are a chockfull of superheroes appearing, more than they would in a group show like "The Avengers" haha
Source: Superhero Hype