"Justice League Part 1" may still be quite far away but that doesn't stop movie fans from speculating details about the movie.

But before "Justice League Part 1," arrives in theaters, "Man of Steel 2" comes first to build things up, akin to Marvel doing 2 "Iron Man" films before showing the first "Avenger" movie.

According to a Screen Rant article, rumors are spreading that "Man of Steel 2" will feature the villain Braniac. For those not that familiar with the comics, Brainiac is one of Superman's greatest adversaries. And as the name suggests, Brainiac uses his "mind" powers to torment the hero and the world.

Although most incarnations of Brainiac show him as a green-skinned humanoid being with a big head, it's not yet confirmed what his actual movie appearance would look like.

As reported by Movie Pilot, there are also other "Superman" comic characters that may appear in the "Man of Steel" sequel.

It seems like Kal-El will finally have someone from his home planet to appear, without the intention of destroying the Earth as rumors are going that none other than Supergirl will make her big screen debut.

Supergirl, or Kara Zor-El, is portrayed as Superman's cousin. According to reports, Supergirl will be just as important as Superman in "Man of Steel 2." Bizarro or El-Kal/Kent Clark is also rumored to appear in the sequel.

According to ComicBook.com however, all of these may potentially be scrapped as rumors are flying that a solo Superman movie are essentially dead.

As reported by Birth Movies Death, Instead of being in "Man of Steel 2," Brainiac, along with the aforementioned characters are to make appearance in the "Justice League Part 1."

"A lot of this stuff is scrapped now. Why? Because every whisper I hear about Justice League contains the word 'Brainiac.'"

So which movie you want to see Brainiac appear? "Man of Steel 2" or "Justice League Part 1"?