Watch Sydney Sweeney transform into a champion boxer for "Christy," while Jacob Elordi's electrifying as the Creature of Netflix's "Frankenstein."

Actress Sydney Sweeney stars in a new film based on the life of Christy Martin, the former prizefighter whose biggest battle took place outside of the ring.

The boxing ring has been well-worn cinematic territory over the years, from Raging Bull to Rocky, from Million Dollar Baby to Creed. And now another big-screen fighter is lacing up their gloves and entering the ring: Emmy nominee Sydney Sweeney (Euphoria,

Sweeney's performance is a revelation, but the film itself is not a complete knockout. Christy is a paint-by-numbers biopic. Like many biopics, it's carried by its tour de force from its lead actor. It's a great recovery for her — especially after the American Eagle jeans debacle.

Sweeney caused a firestorm earlier this summer when she appeared in a controversial ad for American Eagle. Some people criticized the retailer for its “Sydney Sweeney Has Great Jeans” campaign, saying that the use of “jeans” had racial undertones due to her blonde hair and blue eyes.

"Christy" stars Sydney Sweeney and Ben Foster chat with USA TODAY about their physical transformations and the emotional ramifications of their roles.

Christy is not streaming on Netflix or Prime Video right now. While it’s possible Christy may stream on Netflix someday, it won’t be until after the theatrical run and digital release of the movie. Christy is not a Netflix original—it’s a small, independent film being distributed by Black Bear in the U.S.

Sydney Sweeney shares her intense physical transformation for her Christy Martin biopic, explaining how she gained 35 pounds for the role.