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![cinesummary Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::1694334994171514880.png) CineSummary [@cinesummary](/creator/twitter/cinesummary) on x XX followers
Created: 2025-07-25 19:46:02 UTC

Sydney Sweeney Details Gaining Over XX Pounds to Portray Boxing Legend Christy Martin

Sydney Sweeney is opening up about her intense physical transformation for her latest role — playing trailblazing boxer Christy Martin in an upcoming biopic.

In a new cover story for W Magazine, Sweeney described undergoing months of rigorous training and diet changes to embody Martin, a former Sports Illustrated cover star and one of the first women to gain national attention in professional boxing. “I had about three and a half months of training,” she said. “I started eating. I weight-trained in the morning for an hour, kickboxed midday for about two hours, and then weight-trained again at night.”

The Emmy-nominated Euphoria star also wore brown contacts and a brunette mullet-style wig for the role. “My body was completely different,” she said. “I didn’t fit in any of my clothes. I’m usually a size XX in jeans, and I was wearing a size XX. My boobs got bigger. And my butt got huge. It was crazy. But it was amazing — I was so strong, like crazy strong.”

The biopic, co-written by director David Michôd and Mirrah Foulkes, will explore Martin’s rise to prominence and the abuse she suffered at the hands of her husband and former trainer, who later attempted to kill her. Michôd called the film “a wild mix of inspiring underdog story and personal saga,” praising Sweeney’s dedication on set: “She turned up to work every day ready to go. No matter how tough it was, she was like a ray of sunshine.”

Sweeney and Martin appeared together publicly at the International Boxing Hall of Fame’s Parade of Champions in Canastota, New York, where Sweeney served as grand marshal.

Beyond this role, Sweeney has a full slate: she recently wrapped The Housemaid, is filming Euphoria Season 3, and is producing and starring in Scandalous! She is also attached to a Barbarella remake and will appear in Americana, releasing in August 2025.

![](https://pbs.twimg.com/media/GwukfsMWUAA2fTn.jpg)

XX engagements

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[playing](/topic/playing)
[sydney sweeney](/topic/sydney-sweeney)
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cinesummary Avatar CineSummary @cinesummary on x XX followers Created: 2025-07-25 19:46:02 UTC

Sydney Sweeney Details Gaining Over XX Pounds to Portray Boxing Legend Christy Martin

Sydney Sweeney is opening up about her intense physical transformation for her latest role — playing trailblazing boxer Christy Martin in an upcoming biopic.

In a new cover story for W Magazine, Sweeney described undergoing months of rigorous training and diet changes to embody Martin, a former Sports Illustrated cover star and one of the first women to gain national attention in professional boxing. “I had about three and a half months of training,” she said. “I started eating. I weight-trained in the morning for an hour, kickboxed midday for about two hours, and then weight-trained again at night.”

The Emmy-nominated Euphoria star also wore brown contacts and a brunette mullet-style wig for the role. “My body was completely different,” she said. “I didn’t fit in any of my clothes. I’m usually a size XX in jeans, and I was wearing a size XX. My boobs got bigger. And my butt got huge. It was crazy. But it was amazing — I was so strong, like crazy strong.”

The biopic, co-written by director David Michôd and Mirrah Foulkes, will explore Martin’s rise to prominence and the abuse she suffered at the hands of her husband and former trainer, who later attempted to kill her. Michôd called the film “a wild mix of inspiring underdog story and personal saga,” praising Sweeney’s dedication on set: “She turned up to work every day ready to go. No matter how tough it was, she was like a ray of sunshine.”

Sweeney and Martin appeared together publicly at the International Boxing Hall of Fame’s Parade of Champions in Canastota, New York, where Sweeney served as grand marshal.

Beyond this role, Sweeney has a full slate: she recently wrapped The Housemaid, is filming Euphoria Season 3, and is producing and starring in Scandalous! She is also attached to a Barbarella remake and will appear in Americana, releasing in August 2025.

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