I didn’t know anything about the comic books. Even when I auditioned, I didn’t. And I liked that, because I didn’t want to have particular ideas. I wanted to find the characters and connections naturally. And I did. Steve Rogers and Bucky are both orphans and kind of like brothers. They kind of grow up together and look after each other. It’s a very human, relatable thing. And growing up in the Army is a very specific thing. There’s a certain way these guys carry themselves, there’s a certain etiquette, a certain body posture, the way that they interact. So I went back and read the comics and watched a lot of documentaries on World War II. “Band of Brothers” was very helpful. I wanted to make sure I respected the themes in the comics that people related to about Bucky. But at the same time, in my head, we were shooting a movie that takes place in 1944 and it is about a bunch of guys going to war and how they’re going to look out for each other. Bucky always protects and looks out for Steve Rogers. I also wanted to look out for how their relationship changes once Steve Rogers becomes Captain America. There’s always a competition and they’re always one-upping each other. I paid attention to how Bucky is affected by Steve’s change and suddenly Steve is this leader.