‘Captain America: Civil War’ to Feature ‘Darker Version’ of Tony Stark, Co-Director Says

The film pits Captain America and Iron Man against each other.

The film's plot pits Captain America and Iron Man – both beloved superheroes -- against each other.

The original comic books were the basis for the film, but the production will diverge from the source material.

Joe Russo, the film’s co-director, gave some insight into Stark, saying: “Downey is playing ... a much darker version of Tony Stark than he’s ever played, and he’s crushing it.”

"Captain America: Civil War" will be released on May 6, 2016 by Disney, the parent company of ABC News.