Amber Heard Wears Fashion-Forward Swim Cap at 'Aquaman' Premiere

The actress delivered a jaw-dropping look in a metallic green plunging gown and matching swim cap in London.

Amber Heard channels her Aquaman character, Mera, on the blue carpet! 

The actress attended the film's world premiere in London on Monday, sporting a head-turning green-and-gold metallic, brocade cut-out, plunging gown and matching headpiece from Valentino's Haute Couture collection that resembled a swim cap -- fitting for the movie's aquatic theme. 

ET's Nischelle Turner got the scoop on the show-stopping look from Heard, who "wanted to make a splash".  

"You know I saw this dress walk down the red carpet in Paris at the Valentino Haute Couture show and I just, my jaw dropped and I looked over at my stylist who was sitting a few seats away and she just mouthed to me 'Oh my god' and I was like yes, I just knew. I mean I'm wearing a swim cap for god's sake." 

Mike Marsland/WireImage

The style star explained she stands by her fashion choices and doesn't care what others think. She recently tweeted an empowering response to a story that called out her nipples. 

"I don't care what people have to say about my fashion choices. I dress for my own self; however, to say I had a malfunction because you could see my body, I'm not ashamed of it. I don't care how it looks to you or the effect it has on you. How dare you tell me it's a malfunction. My nipples or any part of me are not a malfunction." 

The blonde beauty completed the dramatic ensemble with gold peep-toe platform sandals by Brian Atwood and Beladora jewelry. Heard kept her makeup simple with a subtle peachy pink pout, shimmery neutral eyes, subtly contoured cheeks and brushed-up brows. 

Mike Marsland/WireImage

She was joined by her co-star, Jason Momoa, who plays the title hero. The actor opted for a cool, casual outfit in a leather jacket and coated jeans. 

David M. Benett/Dave Benett/WireImage

Aquaman hits theaters Dec. 21. For more on the movie, see below: 

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