10 Best Movie Plot Twists Of 2015

3. Ava Tricks Caleb & Escapes - Ex Machina

Ex Machina, written and directed by novelist turned director Alex Garland, proved to be one of the best sci-fi movies of the year; an intelligent and twisty puzzle box that thrived on its ability to throw audiences for a loop for the sum of its runtime. The plot concerns a computer billionaire named Nathan Bateman (Oscar Isaac), who invites a low-level programmer named Caleb (Domhnall Gleeson) to his secluded mountain house in the middle of nowhere to test whether or not he has successfully managed to create true artificial intelligence. Ava (Alicia Vikander), the A.I. in question, builds a relationship with Caleb, and - as he falls in love with her - she ultimately convinces him to help her escape. The movie's final twist is a doozy: it turns out that Ava has been manipulating Caleb the whole time. She doesn't have feelings for him; she's merely been pretending in an attempt to trick him into letting her out. Nathan suspected this would happen all along, but didn't account for the fact that Caleb might rewire the locking system when he was passed out drunk. Which he did. All of a sudden Ava is the smartest "person" in the room. It's at this point that Nathan is killed by Kyoko, another A.I. creation who comes to Ava's defence when Nathan tries to destroy her, and Ava locks Caleb in a room he'll never be able to get out of, leaving him to die. Then she escapes and joins humanity. Creepy.