Warning! There may be SPOILERS ahead! Back in August, a report surfaced from the set of Batman v Superman: Dawn of Justice, which revealed that the corpse of General Zod, played by Michael Shannon in 2013's Man of Steel, plays an important part in the events that unfold in Batman v Superman: Dawn of Justice. The earlier report, which was never confirmed, stated that Lex Luthor (Jesse Eisenberg) was experimenting on Zod's dead body, since it is, "the key to his master plan to defeat Superman." While the report didn't divulge what exactly Luthor was using Zod's corpse for, today we have a new report from ComicBook.com that fills in the blanks.

Over the course of Luthor's experiments with Zod's corpse, he reportedly, "triggers the Doomsday genome" which re-animates the dead body and turns it into the villainous Doomsday. Granted, we've heard a number of Doomsday rumors over the past year, leading to plenty of speculation about Superman actually dying in Batman v Superman: Dawn of Justice, since Doomsday was responsible for the Man of Steel's death in the iconic comic book The Death of Superman. Naturally, this seems unlikely, since Warner Bros. is already setting up a two-part Justice League movie that will feature the Man of Steel (Henry Cavill).

What's also intriguing is that Michael Shannon himself was photographed alongside Henry Cavill in Chicago this past November, where Batman v Superman: Dawn of Justice was shooting at the time. Of course, Michael Shannon could have been in town for other reasons and just wanted to meet up with his Man of Steel co-star, but these rumors about Zod's corpse could mean that the actor will actually play Doomsday.

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In the comics, Doomsday was created by a Kryptonian scientist named Mertron, who was trying to create the perfect human weapon. The experiment backfired, with Doomsday killing the scientist and several others before being captured and shot out into space. Instead, it crash landed on Earth, where the villain later awoke and killed Superman in Metropolis. Of course, even if these rumors are true, it isn't known how much of Doomsday we'll see in Zack Snyder's Batman v Superman: Dawn of Justice, since he may be just introduced here before playing a bigger part in Justice League Part 1 and Justice League Part 2, but it would make sense to include him in this way, to tie in Man of Steel with the rest of this expansive movie universe. What do you think about these rumors? Chime in with your thoughts below.