Production has been under way on Justice League since mid-April, but the project has been shrouded in secrecy over the past few months. Last week, a group of journalists were invited to the set, where they were shown a scene where Batman (Ben Affleck) meets The Flash (Ezra Miller) for the first time. Today we have another interesting update that surfaced from that set visit, although, if you haven't seen Batman v Superman: Dawn of Justice yet, be warned that there will be plenty of SPOILERS below.

Many were surprised when, months before the release of Batman v Superman, a trailer surfaced that featured our first look at the iconic villain Doomsday, who had long been rumored for the movie. At the end of the climactic battle, Superman (Henry Cavill) sacrifices himself to save the world, killing Doomsday as this creature killed him in the process. The movie ends with a final shot at his funeral, showing the dirt levitate above his casket, hinting Superman will come back from the dead. During this set visit, director Zack Snyder teased to Comic Book Resources that Superman may actually have a mullet when he returns.

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"[His hair] should be perfect. A little longer, I guess! That's what the myths are anyway."

After Superman was killed by Doomsday in the 1990s DC Comics, when he returned, he was seen sporting a unique mullet. It seems that director Zack Snyder will be faithful to the comics, at least in terms of Superman's returning hairstyle, but still, we don't know much else about how Superman will come back, or when that will actually happen within the story. We do know that Ben Affleck's Bruce Wayne/Batman will be responsible for bringing the entire Justice League together, but we don't know if Superman will return after the team has been formed. When asked about Superman's death and resurrection, the director had this to say.

"I guess that's part of the story. If he does appear, I think that that would be a big part of the story, right? There's a process, clearly, that would have to go on."

Fueled by his restored faith in humanity and inspired by Superman's selfless act, Bruce Wayne enlists the help of his newfound ally, Diana Prince, to face an even greater enemy. Together, Batman and Wonder Woman work quickly to find and recruit a team of metahumans to stand against this newly awakened threat. But despite the formation of this unprecedented league of heroes-Batman, Wonder Woman, Aquaman, Cyborg and The Flash-it may already be too late to save the planet from an assault of catastrophic proportions. Take a look at a photo below from earlier this week, which shows that Henry Cavill may in fact be growing out his hair for Justice League.