character name in title   father son relationship   beautiful woman   retirement   philadelphia pennsylvania   uncle nephew relationship   boxing   boxer   hero   comeback   fence   boxing match   boxing ring   poverty   ghetto   underdog   auction   former athlete   boxing promoter   boxing trainer   unusual method of training   boxer hero   sequel to best picture winner   trainer   estate sale   exercising   fifth part   reference to rocky marciano   riches to rags   reference to mark twain   cult favorite   betrayal   bravery   training   husband wife relationship   sequel