I should begin any review of Bennett Miller’s "Foxcatcher" by noting that DuPont products put dinner on my table. My father, an accountant by trade, later purchased a small business that sold DuPont products to auto body shops. That might make me the wrong person to review the film. Or it might make me the right person. You judge. The DuPont company has had a long and fascinating history, starting as an arms supplier, then evolving