While promoting the Justice League movie, Jason Momoa drops a small plot spoiler about his character in both Justice League and Aquaman.
Jason Momoa fills in SFX Magazine that Aquaman doesn't become King of the Seven Seas until the end of the Aquaman movie.
"Aquaman," adds Jason Momoa, "he's not even Aquaman yet. He's not the King of the Seven Seas. We don't really get there until my solo movie, at the end. Really, it's a huge growth for me. It's a gigantic arc for Arthur Curry. It may be tough for a lot of fans to watch what they're gonna see, how I portray him. But you gotta wait until we get to the solo movie to really know. Because he's not king yet. He doesn't believe in himself, he doesn't know what to do with the powers he has. He's going through tons of loss. He hates Atlanteans. The fact that people are calling him 'Aquaman' right now - he couldn't give two sh-ts about anything Atlantean. So he's really not quite there yet. That's kind of tough to play. We gotta figure out the origin, where we're going. Some people will be like, 'This isn't my Aquaman.' But we're not there yet.
Aquaman has a December 21, 2018 release.
Justice League has a November 17, 2017 release directed by Zack Snyder, with the story by Chris Terrio and Zack Snyder, the screenplay by Chris Terrio and Joss Whedon, and stars Ben Affleck as Batman, Henry Cavill as Superman, Gal Gadot as Wonder Woman, Jason Momoa as Aquaman, Ezra Miller as The Flash, Ray Fisher as Cyborg, J.K. Simmons as Commissioner Gordon and Willem Dafoe an Atlantean, Nuidis Vulko.
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.