Batman v Superman: Dawn of Justice (2016) Bluray Subtitle Indonesia

Everyone had expected the movie Batman v Superman will address the conflict between the knights of darkness (the dark knight) against the iron man (man of steel). That invites curiosity from the synopsis above, there are new threats that arise and endanger mankind. Who is the "new threat" it? What Lex Luthor, Superman's archenemy? Or, like gossip, Doomsday, super strong creature that is said to destroy Superman comics.