In 1967, she appeared in the musical "Camelot", opposite Richard Harris. Other notable movies have included; "The Charge of the Light Brigade" (1968), "Isadora" (1969), "The Devils" (1970), "The Trojan Women" (1971), "Mary Queen of Scots" (1972), "Murder on the Orient-Express" (1974), "Julia" (1977), for which she won an Academy Award for best supporting actress, "Agatha" (1979), "The Bostonians" (1984), "Wetherby" (1985), "Howard Ends" (1992), "Mrs Dalloway" (1997), etc.