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Sydney Sweeney trained for months and gained 30 pounds to prepare for Christy Martin biopic

Sydney Sweeney trained for more than three months to play boxer Christy Martin in biopic

Sydney Sweeney stars as International Boxing Hall of Famer Christy Martin in a new biopic, which premiered at the Toronto International Film Festival (TIFF) this weekend.
For the role, Sweeney underwent a significant physical transformation, gaining 30 pounds and training in boxing for several hours a day over three months.
She expressed her enjoyment of the rigorous training, stating she 'truly felt Christy’s power' as she transformed.
Sweeney initially felt nervous about Martin being on set, but grew to love her presence, finding her energy and spirit enjoyable for the entire crew.
To achieve realism in the fight scenes, Sweeney revealed that she and her co-stars actually punched each other, sometimes resulting in bruises and concussions.