Füge eine Handlung in deiner Sprache hinzuJon Favreau stars in this bio-pic about the only undefeated world heavyweight champion in the history of boxing, Rocky Marciano.Jon Favreau stars in this bio-pic about the only undefeated world heavyweight champion in the history of boxing, Rocky Marciano.Jon Favreau stars in this bio-pic about the only undefeated world heavyweight champion in the history of boxing, Rocky Marciano.