Accompanied by the text "another day at the office," the video posted on Heard's Instagram account depicts the actress taking on two attackers, flipping them both onto the mat. The move she uses looks similar to kotegaeshi, which is employed in Aikido. Founded in Japan, Aikido emphasizes redirecting momentum and is often considered a good martial art for smaller fighters.
Heard's smaller stature contrasts with 6-foot-4 Jason Momoa's Aquaman, who hasn't been afraid to show off his brute strength and muscularity, having smashed an ice sculpture while shirtless.
Mera was introduced in 1963 in DC Comics' "Aquaman" #11, by Jack Miller and Nick Cardy, is the former queen of the mysterious Dimension Aqua (Xebel), and queen of Atlantis, who has been both a Red Lantern and a member of Justice League United. "Aquaman" director James Wan has stated the relationship between Mera and Aquaman will start out a little rough in the film.
“It starts off initially with them not quite clicking with each other,” he said. “But then as the story progresses as they learn to try and work together, they get closer and closer. I think those stories are always such a great place for a filmmaker like myself to have fun with my actors.”
Heard debuts as Mera in November in director Zack Snyder's "Justice League," in which Bruce Wayne and Diana Prince assemble a team of metahumans to confront a threat posed to Earth by Steppenwolf and his armies of Parademons from Apokolips.
Opening Nov. 17, "Justice League" stars Ben Affleck as Batman, Henry Cavill as Superman, Amy Adams as Lois Lane, Gal Gadot as Wonder Woman, Jason Momoa as Aquaman, Ezra Miller as The Flash, Ray Fisher as Cyborg, Willem Dafoe as Vulko, Jesse Eisenberg as Lex Luthor, Jeremy Irons Alfred Pennyworth, Diane Lane as Martha Kent, Connie Nielsen Queen Hippolyta and J. K. Simmons as Commissioner Gordon.
Arriving Dec. 21, 2018, "Aquaman" stars Jason Momoa as Aquaman, Amber Heard as Mera, Patrick Wilson as Orm, Willem Dafoe as Nuidis Vulko and Nicole Kidman as Queen Atlanna.