Sydney Sweeney shows off her muscles on set of boxer biopic Christy Martin

Sydney Sweeney flashed her guns as she shared a series of behind-the-scenes snaps from her latest movie on Wednesday.

The actress, 27, looked worlds away from her usual self as she transformed into boxer Christy Martin while flexing her biceps to promote the film.

Posing in a dark wig, a red tank top, and sweats she wrote: ‘Here’s a little bts from my film I’m working on right now. Over the past few months, I’ve been immersed in training to bring to life the story of an incredible woman…

Gun show! Sydney Sweeney flashed her muscles to promote her new movie this week

‘A true champion who fought battles both inside and outside the ring. her journey is a testament to resilience, strength, and hope, and I’m honored to step into her shoes to share her powerful story with you all. more to come soon 🙂

‘CHRISTY MARTIN.’

The actress channel the boxer’s 90s’ heyday – years before her husband James attempted to kill her.

Known as ‘The Coal Miner’s Daughter’ thanks to her father’s job, Christy, 56, originally from West Virginia, is credited with putting women’s boxing on the map after taking on Deirdre Gogarty in Las Vegas in 1996.

Transformation: Sydney gave fans a glimpse of her new role on set of the new movie

New look: Sydney ditched her blonde hair as she transformed into the boxer

The actress is set to play boxer Christy Martin, who was stabbed and shot by her husband, leaving her for dead in 2010. She survived the attack

In May, Christy revealed she was ecstatic over the actress taking on the challenge of playing her and said she would also be eager to help her train for the role.

While speaking about the project, which will be directed by filmmaker David Michod, she told TMZ that she is thrilled about the casting, especially considering Sydney’s experience in kickboxing as a teen.

Sydney said she was ready for the ‘physically and emotionally demanding’ part in the biopic, which will be put on the market at the Cannes Film Festival.

The boxer gushed over Sydney and also wholly refuted the claims that the star ‘is not pretty and she can’t act’ as previously stated by a top Hollywood producer.

Christy, 56, originally from West Virginia , is credited with putting women’s boxing on the map after taking on Deirdre Gogarty in front of a sell-out crowd at the MGM Grand in Las Vegas in 1996 – pictured with Jim in 1996

Christy spent 20 years suffering abuse at the hands of her husband James ‘Jim’ Martin, who was also her trainer, who tried to kill her in 2010

Christy also explained the importance of the biopic because it’s about more than just her boxing career and journey.

She said: ‘I want this movie to bring awareness to domestic violence, the challenge of sexuality and overall underdog story.’

‘I am a coal miner’s daughter from a small town in southern West Virginia that made an impact in a sport that wasn’t taken seriously – women’s boxing.’

Christy says she hopes the movie will shine a light on female sports and domestic violence