Justin Kerzel’s “Macbeth” is anything but a tale told by an idiot as he brings Shakespeare’s dark fable of ambition, paranoia and madness to the screen full of sound and fury. With Scotland racked by civil war, loyal general Macbeth leads the King’s forces in a final, decisive battle against the traitors. With the battle won, Macbeth is confronted by mysterious wyrd sisters who prophesise that…