Matt Damon's biceps in The Odyssey have been getting plenty of attention lately — but not for the reason some might think.

During a recent interview, Happy Sad Confused host Josh Horowitz praised the actor for having "the greatest bicep work I've seen outside of a Hemsworth film."

But Damon was quick to confess that, in at least one key scene in Christopher Nolan's action-fantasy epic, those impressive arms–belonged to someone else.

His stunt double was a Canadian woman, Devyn Dalton, who is from Vancouver, B.C. — and, according to Damon, had "the greatest arms [he's] ever seen."

"When we did the forced perspective stuff of the Laestrygonians … there were these stunt men who were all seven feet," Damon explained in the now-viral clip, referring to the giant warriors featured in the film.

"Then they got stuntmen who were under five feet. And so my double was a woman, a female stunt performer, who had the greatest arms I've ever seen," he added.

Dalton, for her part was left speechless by the praise.

The four-foot-six performer told CBC News she couldn't believe her eyes — or ears — when friends sent her the clip.

"My jaw kind of dropped, I just thought it was so awesome," said Dalton, 34, who also boasts an impressive resume as an actor, voice-over artist, performance capture artist and dancer.

"I'm definitely not the only stunt woman who is doubling men and I think it's so cool to shine a light on that," she said.

Damon, who portrays Odysseus in the film, also reflected on meeting Dalton for the first time in the catering tent during production. In the interview, he recalled giving her a hug and thanking her for all the "hard work she put in."

"So there are those shots in the movie where you see these giants looming over me … it was almost 100 per cent my arms in the movie but you gotta give it up where it's due," he continued.

Dalton appears to appreciate the credit. The stunt performer, whose IMDB credits include Once Upon a Time, The Last of Us, and Percy Jackson and the Olympians,commented on the viral clip, writing, "It was my honour to double @matt_damon_official ♥️."

She also shared her own video on Instagram showcasing moments of her time filming The Odyssey in the Scottish Highlands, along with a caption praising the "incredible @matt_damon_official" and expressing her gratitude for being a part of the "adventure."

Dalton said the recognition means the world in an industry where women remain underrepresented and body image pressures abound.

"I think celebrating being a strong female and just embracing my athletic body type and all that goes into that, I think is so important," she said.

Since the clip went viral, Dalton says she's received a "massive" outpouring of support, especially from young women and girls.

"It makes me emotional because if I can somehow be an inspiration or help them continue their dream, that's what it's all about really," she said.

While Dalton may have lent her arms to at least one scene, Damon said he did some heavy lifting of his own.

The Bourne Identity star told People he returned to his high school weight of 167 pounds to prepare for the role.

"I didn't change in an unhealthy way," he said in a recent cover story for the magazine. "It was more about just getting really, really physically fit, which just really involves changing your diet, just a whole lifestyle change."

This image released by Universal Pictures shows, from left, Jimmy Gonzales as Cepheus, Matt Damon as Odysseus and Himesh Patel as Eurylochus in a scene from The Odyssey. (Melinda Sue Gordon/Universal Pictures/The Associated Press)

The Odyssey is based on an ancient Greek epic poem that follows the Greek hero Odysseus (Damon) and his perilous 10-year struggle to return home to Ithaca following the Trojan War.

The film also stars Anne Hathaway as Odysseus' wife, Penolope, and Tom Holland as his son, Telemachus, along with several other Hollywood heavyweights including, Zendaya, Robert Pattinson, Charlize Theron, Lupita Nyong'o, Travis Scott, Elliot Page, Mia Goth, Corey Hawkins, Jon Bernthal, Samantha Morton and Benny Safdie.