Lars Von Trier's "Antichrist" is poised to detonate at the Toronto Film Festival. This willfully controversial director will inspire, as he often does, a storm of controversy, debate, critics clamoring to get into advance screenings that are already jammed, and a contentious press conference. Of the 400 or so films at TIFF this year, "Antichrist" was the first that sold out in advance. It was the same last May at Cannes, and that was before it has even been seen.