But if you were in Charlotte, North Carolina, over the weekend, you could have walked right past her without knowing it.

On Sunday, new photos were taken of the starlet looking unrecognizable on the set of her upcoming film, reportedly titled Black Bear.

SYDNEY SWEENEY SHOWS OFF FAMOUS CURVES AS SHE PREPARE TO BE GROUNDBREAKING BOXER

Sydney Sweeney prepares to film a scene for her upcoming Christy Martin biopic in Charlotte, North Carolina. The actress is unrecognizable and wears loose-fitting clothing, a stark contrast to what she is usually photographed in. (background grid)

Do you like what you're reading? CLICK HERE FOR MORE ENTERTAINMENT NEWS

The “Euphoria” actress was accompanied by a woman who held an umbrella over the actress's shaggy brown locks (presumably a wig), wrapped in a blue headscarf. The actress wore a loose sweatshirt and sweatpants to hide her petite figure.

Not much is known about the film, in which Sweeney plays real-life boxer Christy Martin. However, in May, Sweeney said Deadline that she was excited to “transform” her body to be well-equipped to portray the athlete.

Sydney Sweeney previously revealed that she took up kickboxing as a teenager. (Frederic J. Brown/AFP via Getty Images)

“I fought and did kickboxing from the age of 12 to 19. I'm itching to get back in the ring, train and change my body,” she shared. “Christy's story is not an easy story, it is physically and emotionally demanding, there is a lot of weight to carry. But I love challenging myself.”

“Christy Martin Not only did she legitimize female boxing, she also overcame gender stereotypes and stood up to emotional, physical and financial abuse,” she told the outlet. “I have a passion for the fight world, Christy's story sheds light on her incredible rise to the top” while also showing the behind-the-scenes struggles of fame. I feel the urge to tell a story about a woman who faced so much adversity and didn't let it defeat her. It’s powerful and emotional.”

CLICK HERE TO SIGN UP FOR THE ENTERTAINMENT NEWSLETTER

Sydney Sweeney said she wanted to “transform” her body for the role. (Steven Simione/WireImage/Getty Images)

This isn't the first film in which Sweeney portrays a real person. In the upcoming film Eden, directed and produced by Ron Howard, Sweeney plays Margret Wittmer, who famously settled on the island of Floreana.

In 2023, Sweeney played the title role in Reality as Reality Winter, known for leaking American intelligence information. In 2019, she played Dianne “Snake” Lane, a young member of the Manson family cult, in the film “Once Upon a Time… in Hollywood.”

The chemistry between Glen Powell and Sydney Sweeney in their film Anyone But You actually sparked affair rumors. (Dia Dipasupil/Getty Images)

CLICK HERE TO GET THE FOX NEWS APP

In an interview with Variety earlier this year following the success of her film Anyone But You (also starring Glen Powell), Sweeney said she loves pushing boundaries as an actress.

Speaking about her film Immaculate, in which she not only starred but also produced, Sweeney said: “I love finding places I didn't know I could explore – and the limits of that to shift what people expect from me.”

“I wish I had a formulaic answer to how I did it. But whenever a director says 'action', it's like a switch. And I allow all of Sydney's thoughts, feelings and emotions to disappear. And I'm every character now.” I play – I'm Cecilia at the moment. I don't like rehearsals. What you will see (in the final moments of the film).