De Havilland appeared in her final motion picture leading roles in two films released in 1964, both of which were psychological thrillers. In Walter Grauman's "Lady in a Cage", she played a wealthy poet who becomes trapped in her mansion's elevator and faces the threat of three terrorising hooligans in her own home. Critics responded negatively to the graphic violence and cruelty shown on screen. A.H. Weiler of "The New York Times" called it a "sordid, if suspenseful, exercise in aimless brutality". That same year, deHavilland appeared in Robert Aldrich's "Hush...Hush, Sweet Charlotte" with her close friend Bette Davis. After Joan Crawford left the picture due to illness, Davis had Aldrich fly to Switzerland to persuade a reluctant deHavilland to accept the role of Miriam Deering, a cruel, conniving character hidden behind the charming façade of a polite and cultured lady. Her quiet, restrained performance provided a counterbalance to Davis. Film historian Tony Thomas described her performance as "a subtle piece of acting" that was "a vital contribution to the effectiveness of the film". The film was mainly well received and earned seven Academy Award nominations. In 1965 she served as the President of the Jury of the 18th Cannes Film Festival, the first woman to do so.