A battle between Batman and Superman seems pretty unfair, given the fact that Batman is mortal while Superman is an alien who possesses supernatural powers.

However in Zack Snyder's "Batman v Superman: Dawn of Justice," which will be released next year, the director revealed that the odds are actually in Batman's side, and there's a pretty good chance that Gotham's resident hero will defeat Superman.

"The advantage that Batman has is the goodness of Superman; the compliance to fair play that Superman has... Batman knows how to exploit Superman," Snyder told Total Film.

In the movie's new plot synopsis, it can be learned that the "epic superhero showdown" between Batman and Superman is being played out by Superman's nemesis Lex Luthor.

"Clark Kent doesn't trust Gotham's mysterious masked vigilante. Bruce Wayne doesn't trust the alien who nearly destroyed Metropolis. And Lex Luthor, who hates Superman more than anyone, is manipulating both of them for his own twisted ends," it reads.

But why are both superheroes so angry at each other? Henry Cavill believes that it is all because of a failed rescue on Batman's part.

"What happens there is one of Bruce's buildings gets destroyed and he's trying to save all the people inside the building and he can't," Cavill told Total Film in an interview. "So he is this angry person who fears what Superman may do. Why are they just going to trust this super-powered alien? What if he does decide to turn against us?"

Ben Affleck, on the other hand, said that his character, who has always been portrayed as the good guy in movies will take a darker turn this time around.

''One of the interesting things about Batman is he functions in some ways as an antagonist: you have to remember, this is Batman versus Superman," Affleck said. "He's found himself in a place of harbouring a tremendous amount of rage for Superman. So it's how he got there, and what that's done to him, and what that's done to people around him like Alfred, who are, I think, very scared and worried for him. It's something that's interesting and new."