Aquaman had already made an "appearance" before Batman or Wonder Woman did.

In the first part of the movie "Man of Steel," Clark abandoned his post to save a bunch of workers atop a burning oil rig. He managed to save all of them but had to hold up a beam to make the rescue possible. The rig unfortunately collapsed on top of Clark and he started to sink in the middle of the ocean. He was eventually saved by a group of whales and fans have theorized that Aquaman was behind it.

Jason Momoa, who plays the king of the seas in "Justice League," confirmed this piece of off-screen "appearance." In an interview with DC All Access, Momoa made the revelation that his character had a hand in saving Superman, saying, "In 'Man of Steel' when Henry's on the oil rig, he's holding that up and then all of a sudden you see him up on the ocean, kind of floats up on the ocean."

The actor added, "[Zack]'s like, I had Aquaman save him so that they'd get to cross paths at one point, so when Bruce goes, 'You ever heard of Superman?' I have and we have crossed paths."

The most popular theory about that scene is that Aquaman sent the whales to save Superman, but it was unclear why he would do that. With the quote from Momoa, it would seem that Aquaman saved Superman personally and left him in safety.

Fans who will watch "Justice League" will expect that this will be the first time that Superman and Aquaman interact on the big screen, but Momoa's revelation makes it more fun for the moviegoers. A nugget of information like this only adds to other talking point for fans, and this confirmation will shed a light on Aquaman's motives and his dynamic with Superman going forward in the DC Cinematic Universe.