Atom Egoyan knew his film Ararat, which tells some hard truths about the World War I-era slaughter of Armenians in Turkey, would be controversial. He wasn’t prepared for just how controversial. Since Ararat debuted several months ago, Egoyan has been called a liar, a propagandist, and had his life threatened via e-mail. It’s enough to make a director long for the days when he was only being called an anti-Semite by a Toronto critic…