Ruby Rose claims Sydney Sweeney's acting is the reason the new movie "Christy" had one of the all-time worst box office openings.

The sports biopic, where the "Euphoria" star portrays trailblazing professional boxer Christy Martin onscreen, debuted at $1.3 million after its Nov. 7 release, according to Box Office Mojo. For films opening in more than 2,000 theaters, it ranks No. 12 on the worst wide openings list, and excluding rereleases, it ranks No. 9.

In a Threads post on Monday, Nov. 10, "Orange Is the New Black" alum blamed Sweeney for the film's lack of success, which centered around the openly lesbian former boxing pro, and also revealed she was initially in talks to star in the movie.

"The original Christy Martin script was incredible. Life changing," Rose wrote. "I was attached to play Cherry. Everyone had experience with the core material. Most of us were actually gay. It's part of why I stayed in acting. Losing roles happens all the time."

USA TODAY has reached out to representatives for Sweeney and Rose for comment.

The "Batwoman" actor, who's also openly lesbian, condemned the comments Sweeney made following the low box office news. Sweeney reflected on how "proud" she was to tell Martin's story, adding that, "we don't always just make art for numbers, we make it for impact. and christy has been the most impactful project of my life."

"For her PR to talk about it flopping and saying SS did it for the 'people.' None of 'the people' want to see someone who hates them, parading around pretending to be us," Rose continued.

In August, following her controversial jeans ad campaign with American Eagle, the Guardian reported that Sweeney was registered as a Republican voter in Florida months before President Donald Trump won a second White House term.

"You're a cretin and you ruined the film. Period," Rose concluded. "Christy deserved better."

What has Christy Martin said about Sydney Sweeney?

Martin has applauded Sweeney for portraying her in the biopic. "I am actually very shy, very reserved and want to help everyone that I possibly can," Martin said at The Toronto Film Festival on Sept. 5. "In the boxing world, I wanted to knock everybody out. So I have those two parts of my personality, and I also think that's why Sydney Sweeney is doing such an awesome job because she got to be this totally different person that none of you expected."

Of Sweeney's portrayal, Martin added the actress wasn't "the beautiful, sexy Sydney; she was the tough, rugged Christy in this movie, and I think it’s awesome."

On Monday, Nov. 10, Sweeney said she was proud to tell Martin's story while sharing behind-the-scenes photos on Instagram.

"this film stands for survival, courage, and hope. through our campaigns, we've helped raise awareness for so many affected by domestic violence. we all signed on to this film with the belief that christy’s story could save lives," she said.

Sydnwy Sweeney calls Trump's reaction to the controversial jeans ad 'surreal'

Rose's post comes after the controversy surrounding Sweeney's American Eagle jeans ad campaign. In a GQ interview published Nov. 4, the 28-year-old actor finally commented on the response to the American Eagle ad, which critics called tone-deaf and offensive.

Sweeney said she was surprised to see the reaction but noted she distanced herself from much of the chatter amid her hectic filming schedule for "Euphoria." She also said it was "surreal" to see both Trump and Vice President JD Vance comment on her commercial.

On Aug. 3, Trump called the ad "fantastic" after a reporter revealed to him Sweeney's political party preference.

The Emmy-nominated actress and the July ad faced scrutiny due to a play on the pun of "genes" and "jeans" being homophones. In the commercial, Sweeney said: "Genes are passed down from parents to offspring, often determining traits like hair color, personality and even eye color." The commercial also proclaimed that Sweeney "has great jeans."

"When I have an issue that I want to speak about, people will hear," she told GQ. She said she "knew at the end of the day what that ad was for, and it was great jeans," so the situation "didn't affect me one way or the other."

Contributing: Brendan Morrow, USA TODAY

This article originally appeared on USA TODAY: Ruby Rose blames 'cretin' Sydney Sweeney after 'Christy' flops at the box office

Reporting by Anthony Robledo, USA TODAY / USA TODAY

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