In the comics, Lex Luthor and his son Lex Luthor Jnr of which Jesse Eisenberg is playing the latter incarnation are both humans. Lexs power traditional comes from his villainy, his business smarts, and sometimes a big robotic suit invented to even the odds in his many battles against Superman. In Batman V Superman: Dawn Of Justice, though, all of that could change. According to one fan theory, Zack Snyders latest superhero movie could resurrect an idea from J.J. Abrams unproduced script Superman: Flyby. Therein, a UFO-obsessed Lex Luthor was later revealed to be a Kryptonian. There are a few ways to incorporate this idea into Batman V Superman. Although it would mean ignoring a few prequel comics, perhaps the open pod in the giant Kryptonian spaceship Clark found was actually once home to a young Lex, who was adopted by Lex Snr in his youth. Even if the powers that be are saving that pod for something else, it wouldnt take long within the film to weave in a unique backstory for Jesse Eisenbergs Lex. This one sounds surprisingly plausible. Giving Lex Kryptonian abilities would make for a fairer fight in the third act, after all, as well as injecting a big twist reveal into the movie. We've looked at this theory in more detail, here.
