Cap at 10: Captain America: The First Avenger’s Ending Originally Included Nazi Robots

Captain America writers reveal how The First Avenger could have had a very different ending.
Cap At 10: Concept Art For Captain America: The First Avenger Featured Jake Gyllenhaal As The Titular Hero

Captain America: The First Avenger writers reveal that Jake Gyllenhaal was used in early concept art for the character.