CANNES -- In "Fahrenheit 9/11," Michael Moore drops any pretense that he is a documentarian to pull together from many sources an angry polemic against the president, the Bush family and the administration's foreign policy. Where "Roger & Me" and "Bowling for Columbine" were personal quests for truth, looking at a subject from different angles and talking to people polls apart in their points of view, Moore stays "on message" here from first shot to last. There is no debate, no analysis of facts or search for historical context. Moore simply wants to blame one man and his family for...