Another "Batman V Superman: Dawn Of Justice" theory emerges and this time, it's about Lex Luthor.
The contention is that Lex Luthor is actually an alien, specifically a Kryptonian just like Kal-El/Superman. While that may be hard to fathom, What Culture explains extensively.
The main basis of the theory is J.J. Abrams script "Superman FlyBy" which they described as a modern Superman reboot.
It was stated that the some of the script's elements were used in Bryan Singer's "Superman Returns" but most of the unused aspects-like the Kryptonian political angle and Jor-El sending Kal away, ended up on "Man of Steel."
The most controversial element of Flyby was Luthor being a Kryptonian. "Portrayed as a UFO obsessive throughout the film, Lex would spend most of the film focusing on a crashed Kryptonian ship, revealed at the end to be his."
Considering this notion, there was an Easter Egg (which was not very well hidden) in "Man of Steel" wherein there was an open pod on the Fortress of Solitude.
There was a comic prequel which hinted that it could be Supergirl (Read it here) but the theory argues that the film would not necessary have to follow that story arc. The pod could be anyone from Krypton, and it could be the man that is Lex Luthor, Jr.
"Dad named the company after himself 10 years before I made my unexpected entrance into his life," Luthor says in the interview. "But investors seemed to respond to the idea of an adoring father building a legacy for his precious son. He used that to his advantage. It was a good shtick, and whatever else he was, he was a good businessman."
The theory is corroborated by the viral-marketing site that appeared as an interview in Fortune wherein Luthor mentioned: "Dad named the company after himself 10 years before I made my unexpected entrance into his life."
It did not seem like the best description of a natural birth. WC also noted: "Various terms are used to describe Luthor and his actions throughout - 'a superhuman feat,' 'down-to-Earth,' 'the prodigal son' - that wouldn't be out of place describing Superman."
Does this theory hold water or is it the result of excessive fandom and a rich imagination? Alex Leadbeater, who put forth the theory, has a disclaimer.
"I'm not saying resolutely that Lex Luthor will be Kryptonian in the DC Extended Universe. I'm just saying don't be too surprised if it does happen - all the clues are there."