Sydney Sweeney has undergone a dramatic transformation, donning jet-black hair and gaining 30 pounds, in the first-look trailer of a new biopic on boxer Christy Martin.

Sydney Sweeney has transformed into boxer Christy Martin in the gripping trailer for 'Christy'. After premiering at TIFF, it is out on November 7th.

Sydney Sweeney cried at the TIFF premiere of Christy as she stood beside Christy Martin, praising the boxer and reflecting on ...