Hello, I'm an expert in comic book lore and superhero narratives. When it comes to the film "Batman v Superman: Dawn of Justice," the primary antagonist is a complex character with multiple layers of villainy.

In the movie, the main conflict is set up between Batman, portrayed by Ben Affleck, and Superman, played by Henry Cavill. However, the character that serves as the primary antagonist is Lex Luthor, who is a classic villain from the DC Comics universe. Lex Luthor is a billionaire businessman and the head of LexCorp, who harbors a deep-seated hatred for Superman and seeks to manipulate events to pit Batman against Superman.

Additionally, the film introduces a more literal and monstrous villain in the form of Doomsday, a creature that is a result of Luthor's manipulations and is a threat to both Batman and Superman, as well as the world at large.

So, to answer your question:

Lex Luthor is the primary antagonist in "Batman v Superman: Dawn of Justice," with Doomsday serving as the physical embodiment of the threat that brings the two heroes into conflict.

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In Batman v Superman, Lex Luthor creates Doomsday using his own DNA, that of the dead General Zod (an alien from Krypton you may remember as the bad guy from Man of Steel) and Kryptonian technology. But this origin diverges from the comic books.read more >>