An intense psychological thriller, from acclaimed writer/director Alex Garland, Ex Machina is a chilling version of the not-too-distant- future of artificial intelligence.

In the mountain retreat of a gifted internet billionaire, a young man takes part in a strange experiment: testing an artificial intelligence, housed in the body of a beautiful robot girl. But the experiment twists into a dark psychological battle - a love triangle, where loyalties are torn between man and machine.

• Age 15