Josh Brolin Shows Off Fit Physique in Shirtless Selfie After Wrapping Dune: Part Two — See the Photo!

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Josh Brolin's new personal trainer appears to be a 1,300-foot sandworm.

The Academy Award nominee, 54, showed off his physique in a shirtless mirror selfie for his Instagram followers on Friday, after he wrapped filming on Dune: Part Two.

"Dune did it," Brolin wrote in the caption, crediting the sequel for whipping him into shape.

RELATED: Javier Bardem Teases Dune Sequel Script, Says It Will 'Surprise People': 'I Was Very Moved By It'

He was met with positive affirmations in the comments section from some famous pals. "You've dune it again, brother. The spice is strong here," Mark Ruffalo wrote.

"Hellz yeah!!" Dave Bautista commented. "Call me if you need a body double," Anthony Hopkins joked, as Brolin's wife, Kathryn Boyd, commented some fire emojis.

Brolin previously confirmed to Collider that he would be in the sequel after starring in writer/director Denis Villeneuve's 2021 adaptation of Frank Herbert's novel.

"I am a part of Dune Part Two, to the ridiculous extent of when somebody mentioned to me that it wasn't on IMDb, I actually went out of my way to call Liz [his publicist] and say, 'Can you please put that on IMDb?'" Brolin said in April. "Because it's a proud moment for me, man."

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The actor returns for Dune: Part Two along with Bautista, Timothée Chalamet, Zendaya, Rebecca Ferguson, Stellan Skarsgård, Charlotte Rampling and Javier Bardem. Joining them in the sequel are Florence Pugh, Austin Butler, Léa Seydoux and Christopher Walken.

In the sequel, Paul Atreides (Chalamet, 26) reunites with Chani (Zendaya, also 26) and the Fremen to avenge his family and prevent a catastrophic fate for the universe.

RELATED VIDEO: Zendaya and Timothee Chalamet Open Up About Their Instant Chemistry While Making Dune: "She Was Like a Breath of Fresh Air"

Bardem, 53, previously teased the sequel after reading the script. "I was very moved by it," he said at the 2022 Cannes Film Festival in May.

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"I've read the new draft," Bardem continued. "And I think they've done an amazing job of putting together the pieces in a way that is gonna surprise people."

Dune: Part Two is scheduled to premiere in theaters on Nov. 3, 2023.