Alex Garland is an accomplished screenwriter, creating such works as “Dredd” and “Never Let Me Go.” He makes his directorial debut with “Ex Machina,” and the premise continues his fascination with isolation and doomsday events, only here the threat, or perhaps the cure-all, emerges in the form of artificial intelligence. A.I. is certainly familiar terrain for cinematic exploration, but Garland constructs something fascinating and unnerving with “Ex Machina,” feeling out numerous acts of manipulation with full attention to mood. While slowly paced, the feature isn’t dull, emerging as a potent study of power and corruption, setting a sinister, tech-heavy atmosphere that almost seems achievable in our day and age. Read the rest at Blu-ray.com