Some observations: * Classic Three Act Structure: Act One: Caleb brought to the compound, interacts with Nathan and Ava, capped off by the first hints that Caleb is starting to have feelings for Ava, and suspicions arising about Nathan. Act Two: Caleb and Nathan with dueling objectives, Caleb falling in love with Ava, convinced Nathan is a 'bad guy', Caleb has to act. Act Three: Plans made that go awry, final confrontations, and the reveal that Ava has been playing both humans. Of course, there are sequences within each act, but those three movements are clearly in place. Also this: The three laws of robotics as laid down by Asimov: 1. A robot may not injure a human being or, through inaction, allow a human being to come to harm. 2. A robot must obey the orders given it by human beings, except where such orders would conflict with the First Law. 3. A robot must protect its own existence as long as such protection does not conflict with the First or Second Laws. In some respects, it seems like Ex Machina goes straight into the buzzsaw of these three rules, taking us from a starting point where the three are accepted as fact, then turning them on their head, similar in some respects to the movie Her. What a terrific script!