The latest updates and spoilers for the live-action "Aquaman" film reveal its first official trailer at San Diego Comic-Con. The film stars Jason Momoa as the aquatic superhero, Arthur Curry, as he finds a way to save his homeworld Atlantis from his haft-brother Orm (a.k.a. Ocean Master) before he starts a war against the surface world.

Momoa spoiled the possible ending of the film during his interview session with Entertainment Weekly (via Comic Book.com). "Aquaman" will take place after the events "Justice League" and it is the first film project in the second phase of the DC Extended Universe alongside "Shazam" and "Wonder Woman 1984."

Arthur comes home to Atlantis

According to Screen Rant, the "Aquaman" trailer starts off with Arthur's father, Tom Curry, rescuing an unconscious Queen Atlanna on the shores of his Lighthouse.

Tom nursed her back to health and over time, they fell in love and Arthur was born. Atlanna was forced to leave her family to quell the on-going conflict with the seven tribes of Atlantis and she believes that their son is the key to unite them all.

The trailer also showed Arthur's childhood and how he discovered he can communicate with aquatic animals after being bullied inside a Boston Aquarium. The video fast-forwards to the present day as Arthur fights off pirates inside a submarine. Mera asked Arthur for help to save Atlantis from Orm and he tries to rally the seven tribes in his quest to start a war against the surface world. Orm is surprised to see his lost brother and views him as a threat to his birthright.

To prevent the war from happening, Arthur reluctantly agrees to help Mera stop his brother and unite the tribes by finding the legendary Trident of Poseidon. The trident was first used by King Atlan and only his descendants can channel its true power to command the seven seas. They are also being hunted by Black Manta as he seeks revenge against the aquatic hero from killing his father.

Jason Momoa spoils the film's ending

According to Comic Book, Jason Momoa may have spoiled "Aquaman's" ending as he told Entertainment Weekly that Arthur will accept the responsibility of being the rightful king of Atlantis.

"I think when he was a little boy, he had these powers and he didn't hone them in so this whole journey of him going to become the king..." Momoa said. "The last frame of this movie you're going to see him actually become the thing he was destined to be."

The "Aquaman" film will premiere in cinemas on December 21.
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