This is the fake documentary you've been hearing about. The one in which British filmmaker Gabriel Range gooses his computer to make it look like George Bush, visiting Chicago in 2007, has just been assassinated. Look, I don't want to see Dubya dead, just departed, from the White House, that is. Sen. Hillary Clinton thinks the very idea of the movie is "despicable." I think the failure of the movie as drama or political provocation makes it unworthy of fuss. Range stages the details leading up