The anchor has been lifted on "Aquaman," which began filming earlier this week. To mark the occasion, director James Wan has presented fans with  the first behind-the-scenes look at the set, albeit a small one.

RELATED: Aquaman: Black Manta Actor Dives Into Comic Research

Based on the photo, which Wan shared on Twitter, it appears as though we'll see a scene in the film that takes place aboard a submarine or some sort of Naval vessel. This seems fitting, considering Momoa's appearance in "Batman v Superman: Dawn of Justice" came in the form of footage seemingly shot from a mini-sub or underwater probe.

“Aquaman” will center on Arthur Curry as the reluctant ruler of the underwater kingdom of Atlantis who is caught between land dwellers that are always polluting the globe and his own people who are ready to invade the surface.

RELATED: Aquaman: Jason Momoa May Have Revealed a New Plot Detail

Directed by James Wan, “Aquaman” stars Jason Momoa as Aquaman, Amber Heard as Mera, Patrick Wilson as Orm/Ocean Master, Willem Dafoe as Nuidis Vulko, Nicole Kidman as Queen Atlanna, Dolph Lundgren as Nereus, and and Yahya Abdul-Mateen II as Black Manta.. The film surfs into theaters Dec. 21, 2018. However, Momoa will next be seen as Aquaman in director Zack Snyder’s “Justice League,” alongside Ben Affleck as Batman, Henry Cavill as Superman, Gal Gadot as Wonder Woman, Ezra Miller as The Flash and Ray Fisher as Cybog. That film opens Nov. 17.