Between Team Cap and Team Iron Man, "Captain America: Civil War" will feature nearly every superhero that's been introduced in a Marvel Cinematic Universe movie. The film will also introduce Black Panther and Spider-Man into the sprawling film franchise and, as screenwriters Christopher Markus and Stephen McFeely revealed to Collider, they almost introduced a third superhero.

"You know, almost everybody made it in," said Markus. "There was a period where we talked about bringing Wasp in. There was actually a draft Wasp was in because she was so almost on the edge of being in 'Ant-Man,' but then you're taking something awesome out of the 'Ant-Man' team's quiver if it's like, 'Well, we're doing her!' Plus she had a similar skill set, so it's like 'Well, maybe we just isolate it to Scott.'"

"When you see the movie, you see that Scott is his own comic relief so it would change that a little bit," added McFeely. "They would be this pair. Everybody else we would talk about them and then they'd go away, but we got most everybody back."

The "Ant-Man" film ends with Evangeline Lilly's character Hope Van Dyne receiving a battle suit similar to the one worn by Paul Rudd's size-changing hero. Lilly will take on the Wasp mantle in 2018 when "Ant-Man and the Wasp" opens, but the screenwriting pair could have brought her in in this year's "Civil War." Instead, they opted to let her make her superhero debut in the 2018 film.

"Captain America: Civil War" opens on May 6. "Ant-Man and the Wasp" opens on July 6, 2018.