Ter promotie van Marvels: The Avengers 2: Age of Ultron had de website Collider een interview met de prachtige Scarlett Johansson die verteld over haar rol als The Black Widow. Maar ook kwam Captien America Civil War ter sprake, en daar over wilde ze kwijt dat deze behoorlijk donker en grimmig gaat worden.

"I have read the script for Civil War. You know, the film has a very different feeling than anything of Marvel's that I've read or been a part of before. These films are-I don't think darker is the right word because there's definitely always going to be some kind of levity, and that comes in a form of humor or hope. When you compare these films to like Batman, it's a different feeling obviously, it's a different audience experience, but as the stakes loom like larger and larger I think these films are kind of maturing with the audience; so there's even more complex psychological twists that I sort of hadn't necessarily anticipated."

I'm excited to work with the Russos again. They have a very different approach to this universe than Joss, just different. It will be interesting to see how they treat all of these new characters. When we were doing Cap 2, the film felt very much like we were doing a kind of '70s style car-chase political-thriller, it had that kind of flavor. But they were also dealing with far less characters, the stakes were just different. Now with Civil War it's gonna be interesting to see how they set up this next phase, I think Cap 3 is definitely sort of like a pre-Avengers 3 and 4. It feels like that, whereas Cap 2 didn't feel like it was necessarily part of The Avengers. I mean, it feels like a piece that fits in, but it didn't feel like it was leading you into Avengers 2."