"Obviously you can't deal with a character called 'Captain America' without dealing with the thematics behind that, " said Russo...
"...so we wanted a relevancy to it and we wanted to put him in a position where he was questioning the chain of command.
"You'll see in these 'Avengers' films, he's on a very specific journey as a character.
"Some people have suspected that he may be 'Nomad'...and I wouldn't say that he is exactly Nomad, but he is the spirit of that character..."
"The 'Nomad' name and costume was created for Marvel by writer Steve Englehart and illustrator Sal Buscema as an alternate identity for 'Steve