In 1963, she played the lead role in "Cleopatra" and met actor Richard Burton, who became her fifth husband in 1964. They appeared in several movies together; "The V.I.P's" (1963), "The Sandpiper" (1965), "Who's afraid of Virginia Woolf ?" (1966), "The Taming of the Shrew" (1967), "Boom" (1968). She also starred in "Secret Ceremony" (1969), "X, Y and Zee" (1972) and "Ash Wednesday" (1973).