A simple, empathetic and patient approach to documentary is applied to moving effect to Luma, a dairy cow. Birthed - starkly, right before our eyes - to an animal industry and to a compliant but caring mother, Luma’s entire life cycle seems prefigured at every point, yet there is drama all the time - in the push of her natural instinct against the pull of her profit-hungry environs. A long-held passion-project by director Andrea Arnold (Wuthering Heights, American Honey), whose sympathy with female bodies here again proffers a unique gaze.