'Captain America: Brave New World' brings adamantium into the MCU. Here's what that means.

The MCU's latest MacGuffin is a familiar one.
 By 
Belen Edwards
 on 
All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Mashable may earn an affiliate commission.
Anthony Mackie in "Captain America: Brave New World."
Credit: Eli Adé / Marvel

Vibranium may not be the top fictional metal in the Marvel Cinematic Universe much longer.

That's because Captain America: Brave New World brings adamantium into the fold. The substance shows up in the body of the Celestial that emerged from the Indian Ocean in Eternals. Now, it's the cause of international conflict, as major world powers try to control the world's only known adamantium supply.

But adamantium is more than just a MacGuffin for Brave New World. It's part of the MCU's groundwork for introducing the X-Men in their upcoming projects — especially one in particular.


You May Also Like

What role will adamantium play in the MCU?

Adamantium is the metal that reinforces Wolverine's skeleton. In the Marvel comics, it's a man-made substance, while in the MCU, it's naturally occurring within the Celestial.

Now that adamantium is in play, the MCU's own take on one of the most famous X-Men can start to take shape. (And no, for timey-wimey, multiversal reasons, Hugh Jackman's appearance in Deadpool & Wolverine doesn't count as the prime MCU universe's Logan.)

In Brave New World, U.S. President Thaddeus Ross (Harrison Ford) highlights adamantium's potential for technological and medical advancements, so perhaps Wolverine's origin story is already underway in some secret lab. Elsewhere, adamantium could provide upgrades to MCU characters' armor, or to iconic props like Captain America's shield.

The adamantium mention is far from the first time the MCU has teased the X-Men following Disney's acquisition of 21st Century Fox. WandaVision reintroduced Evan Peters' Quicksilver (kind of). The Marvels' mid-credit scene showcased Kelsey Grammer as X-Men mainstay Hank McCoy/Beast, reprising his role from 2006's X-Men: The Last Stand and 2014's X-Men: Days of Future Past. And of course, Deadpool & Wolverine was one long celebration of the Fox-era X-Men, complete with crazy cameos and an end-credits crawl paired with behind-the-scenes footage from the original X-Men films. But while that movie felt like a farewell to the X-Men we've come to know over the last few decades, Brave New World's adamantium mention feels like we're one step closer to meeting the MCU's iteration of the X-Men. After several years and quite a few projects' worth of teasing, I'd say we're ready.

Captain America: Brave New World is now in theaters.

Topics Film Marvel

A woman in a white sweater with shoulder-length brown hair.
Belen Edwards
Entertainment Reporter

Belen Edwards is an Entertainment Reporter at Mashable. She covers movies and TV with a focus on fantasy and science fiction, adaptations, animation, and more nerdy goodness. She is a member of the Critics Choice Association and the Television Critics Association, as well as a Tomatometer-approved critic.

Mashable Potato

Recommended For You

Google drops 30 percent app store fee. What that means for you.
Google play and google logo

'Wonder Man' review: All hail the MCU's latest bromance
Ben Kingsley and Yahya Abdul-Mateen II in "Wonder Man."

TikTok deal adds new U.S. owners. Here's what this means for users.
The TikTok logo appears on a smartphone screen, with the American flag on a computer screen in the background.

Sony hands TV business to TCL. What it means for you.
A lineup of Sony's 2025 TVs on display at a popular store

More in Entertainment
How to watch 'Wuthering Heights' at home: Margot Robbie and Jacob Elordi's controversial romance now streaming
Margot Robbie and Jacob Elordi embracing in still from "Wuthering Heights"

How to watch New York Islanders vs. Philadelphia Flyers online for free
Matthew Schaefer of the New York Islanders warms up

How to watch Mexico vs. Belgium online for free
Israel Reyes of Mexico reacts

How to watch Brazil vs. Croatia online for free
Vinicius Junior #10 of Brazil leaves

How to watch USA vs. Portugal online for free
Joe Scally #19 of the United States

Trending on Mashable
NYT Connections hints today: Clues, answers for April 3, 2026
Connections game on a smartphone

Wordle today: Answer, hints for April 3, 2026
Wordle game on a smartphone

NYT Connections hints today: Clues, answers for April 2, 2026
Connections game on a smartphone

NYT Strands hints, answers for April 3, 2026
A game being played on a smartphone.

Wordle today: Answer, hints for April 2, 2026
Wordle game on a smartphone
The biggest stories of the day delivered to your inbox.
These newsletters may contain advertising, deals, or affiliate links. By clicking Subscribe, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy.
Thanks for signing up. See you at your inbox!