The Bard’s tale of the ambitious Scottish lord who with his wife conspire to take the throne of Scotland by hook or crook has always made for great cinema. It’s one of the more violent and action-packed of Shakespeare plays and through the eye of Roman Polanski, at the peak of his abilities, turns the story into a ruthless and bloody parable of ambition - a film even more resonant with the Charles Manson tragedy only a couple years behind this production.