The following year , she played Cassandra in Michael Cacoyannis 's film version of The Trojan Women , opposite Katharine Hepburn , Vanessa Redgrave and Irene Papas . The following year , she played the role of the visionary Cassandra in Michael Cacoyannis 's film version of The Trojan Women , opposite Katharine Hepburn , Vanessa Redgrave and Irene Papas .