The conflict between Palestine and Israel often inspires heated debate (and even violence). In her film Voices Across the Divide, director Alice Rothchild, co-founder of American Jews for a Just Peace Boston and a former Harvard Medical School professor, explore her own feelings about the issue. Rothchild, who has also written books on the issue, will be on hand tonight to introduce her film and sign copies of her book. The movie screens at 4 p.m. at the Cleveland Institute of Art Cinematheque. Tickets are $9. (Niesel)