Overview

• Speaking at the Hamptons International Film Festival, Sweeney outlined a daily schedule of one hour of weights, three hours of boxing, then another hour of weights sustained over three months.
• She said a nutritionist directed a high‑calorie plan with protein shakes and supplements, resulting in roughly 35 pounds of weight gain.
• Sweeney reiterated that she refused a stunt double for the boxing sequences, asserting that the on‑screen punches were thrown at full force.
• Christy Martin was described as deeply involved during production, with Sweeney crediting her presence and feedback as essential to the portrayal.
• Sweeney expressed surprise that Martin’s story is not more widely known and said bringing it to a broader audience motivated her preparation.