I Play Rocky explores the true story of Sylvester Stallone's challenges and determination to star in the iconic 1976 film Rocky. Depicting his struggles with a speech impediment and a partially paralyzed face, the film captures how Stallone, initially an obscure actor, wrote a screenplay that caught the interest of major studios. Despite substantial monetary offers, Stallone insisted on acting in the lead role, ultimately resulting in the film's unprecedented success and influence in cinema history.