By definition, documentaries are supposed to be factual and objective. To look at the sound bites and footage Moore presents, it is clear that he had something else in mind. Bush and his aides are presented repeatedly in their most unappealing light. Moore's script simply declares, as if he knows for certain. And while many documentaries refrain from the use of the music to echo the words and images because it represents overkill, Moore uses songs over and over again.
http://story.news.yahoo.com/news?tmpl=story&cid=2208&ncid=742&e=15&u=/ucgb/20040701/cm_ucgb/michaelmooreandbush