Christopher Markus and Stephen McFeely may have been responsible for bringing Marvel’s Infinity Saga home, but their partnership with Marvel began with the more humble Captain America: The First Avenger. On the 10-year anniversary, the screenwriting duo shared some original ideas that didn’t make it into the movie, like a giant Nazi robot Cap was supposed to fight.
In an interview with Yahoo, Markus and McFeely, who would go on to write Thor: Dark World, Captain America: The Winter…