She referred to the events surrounding Arthur Miller 's appearance before the House Un-American Activities Committee in 1956 , and her studio 's warning that she would be `` finished '' if she showed public support for him . She commented , `` You have to start all over again . She referred to the events surrounding Arthur Miller 's appearance before the House Un-American Activities Committee in 1956 , and her studio 's warning that she would be `` finished '' if she showed public support for him , and commented , `` You have to start all over again .