I admire Smith's impulse to expand his film-making palette and was a fan of his Red State. Tusk, however, may only be for Smith completists. It was so disheartening that I bailed a little early in order to make a screening of The Reach.
Duvall is still at the top of his game and he makes the most of his role. For many that will be enough. But those looking for other elements such as story, believability, and good supporting actors; they will be disappointed.