As we all know, First Avenger: Captain America is set to be a period piece, set in the 1940s. The Red Skull will obviously be the villain and such a movie, and that character was something of an apprentice of Hitler's. So should Hitler be in Captain America? Would it be a sign of the movie taking itself too seriously if he was? Would it hurt the movie if he wasn't there, and Red Skull just refered to him as an off screen presence.