Over on the Golden Coast, things are heating up for Aquaman. The iconic DC Comics hero will be getting his own standalone film after debuting in Justice League, and production is gearing up in Australia. Before shooting begins, director James Wan will be tying up any loose production issues while the film’s cast begins to train. And, over on Twitter, Amber Heard has shared a behind-the-scenes video of her training regimen.

Thanks to @ReelFada, a short clip of Heard training has hit the Internet. The video shows the actress vaulting towards a camera while throwing faux punches. Heard can be seen training in a gym, and in the background, other stunt actors can be seen practicing moves in a mirror.

Of course, Heard is not the only actress to begin training for the action film. Not long ago, a video of Jason Momoa was shared online of him training in Australia. The footage followed an elaborate panning shot as dozens of stunts actors were shown. Then, at the end, Momoa was seen pointing towards an Aquaman comic that was lying around in the gym.

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In Justice League, 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.

Justice League is directed by Zack Snyder, from a screenplay by Chris Terrio, and features an ensemble cast that includes Ben Affleck, Henry Cavill, Gal Gadot, Ezra Miller, Jason Momoa, Ray Fisher, Ciarán Hinds, Amy Adams, Diane Lane, Jeremy Irons and Jesse Eisenberg.MORE: Zack Snyder Teases Powers For Aquaman, The Flash, And Cyborg In Justice League / This Is What Jeff Bridges Could Look Like As Darkseid / 3D Rendering Of Batman Cowl Surfaces / Ben Affleck Reveals What He Learned From Batman V Superman