A British mock-documentary called Death Of A President , which depicts the imagined assassination of George W. Bush, seems to be this year's lightning rod for political outrage at the Toronto International Film Festival. TIFF has been down this road before, with the "cat killer" movie Casuistry: The Art Of Killing A Cat and the ostensibly anti-American 9/11 anthology-thinkpiece 11'09''01. But D.O.A.P. (as it is coyly referred to in festival material) could be more gasoline on the fire of polarized U.S. politics. 'DISGUSTED AT THOUGHT' The movie is fashioned as a future look back at the repercussions that follow Bush's...