The trailer reminds me a little of a modern version of Short Circuit mixed with some of the first short movies by Neill Blomkamp I saw online before the man was popular.
Every child comes into the world full of promise, and none more so than Chappie: he is gifted, special, a prodigy. Like any child, Chappie will come under the influence of his surroundings – some good, some bad – and he will rely on his heart and soul to find his way in the world and become his own man. But there’s one thing that makes Chappie different from anyone else: he is a robot. The first robot with the ability to think and feel for himself. His life, his story, will change the way the world looks at robots and humans forever.