James Wan wanted Atlanteans to wear capes, but costume designer Kym Barrett pointed out that capes drag underwater. They settled on capes being worn only by members of Atlantean royalty.
Aquaman
Once home to the most advanced civilization on Earth, Atlantis is now an underwater kingdom ruled by the power-hungry King Orm. With a vast army at his disposal, Orm plans to conquer the remaining oceanic people and then the surface world. Standing in his way is Arthur Curry, Orm's half-human, half-Atlantean brother and true heir to the throne.
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