... batman and superman, but I really believe the main cause of their fight will be something orchestrated by lex luthor. It doesn't give a full understanding of the movie plot (who said that superman will meet the Congress at the beginning of the film? Maybe some other accident may happen before or during the film that forces superman to accept the us government control) By the way this is just your opinion! In the end the trailer just show that indeed the two superheroes will fight each other, but it leaves so many doubts too (i.e. what is the role of wonder woman? how does lex get the kryptonite? how does he mean to use zod's corpse? what is the role of the superman army? who is the real villain of this movie?). But I can understand that you wanted to write something about the trailer, having nothing else to say!