The sport depicted in the movie "Rocky" is boxing. The film, released in 1976, follows the story of Rocky Balboa, an amateur boxer who gets the chance to fight for the heavyweight championship. It highlights the struggles and triumphs of boxers, including rigorous training, personal challenges, and the quest for redemption. "Rocky" has become iconic within boxing culture and has inspired numerous sequels and spin-offs, capturing the spirit of determination and perseverance in the sport.