While recounting how he got stuck in a porta potty on the "Batman v Superman: Dawn of Justice" set, Michael Shannon -- who played Zod in "Man of Steel" -- incidentally revealed to Vulture that his character would undergo a physical change.
"I was in my costume, and I couldn't use my fingers because in the sequel I have flippers instead of hands," he recalled. "So I had these wax flippers on my fingers, and I couldn't open the door, and I could hear Zack [Snyder, the director] being like, 'Where's Shannon? Where the fuck is he?' and the whole crew was standing around. I was like, knocking on the door with my flippers, 'Let me out of here!'" He was later rescued by "the craft-service guy, who doesn't have the best craft service... He was actually paying attention to what was going on. He came over and he opened the door for me. Otherwise, I would have gotten fired."
At the end of "Man of Steel," Superman killed Zod in a very controversial and polarizing move. Trailers for "Batman v Superman" have revealed that Zod's body, which is in Lex Luthor's possession, will be a plot point during the followup film. The idea that he will have flippers hints that Zod's body will undergo a physical change, giving credence to the rumor he may become Doomsday in this film or in "Justice League."