Her opens with a close-up of its star, Joaquin Phoenix, speaking directly into the camera, but he is not addressing the audience. Nor is he speaking to another character on the other side of the camera. Instead he is talking to a machine. Her imagines a world only one step removed from the one we live in today, where the only conversations people have are with their phones or their computers, of a lonely, cellular existence where every human interaction is managed through a digital medium. The film takes place in a near-future Los Angeles and follows Theodore Twombly (Phoenix),…