There have been a no. of trailers out there already for Chappie and it has been already made clear through the trailers that it is about a heavily sentimental robot that gets attached to people just like a new born baby and understands about what they are going to express.
Also it has been already pointed it is going to be an action packed movie but still nothing has been revealed about the premises of movie. All about the story have been already explained by the cast in a new behind-the-scenes featurette if you are up for the spoilers just watch this video in here.
Chappie is created to be a police droid, but is stolen by programmer Deon — played by Slumdog Millionaire star Dev Patel — before he can hit the streets. Deon, having hit on the technology that could make artificial intelligence possible but having been rebuffed by his employers, reprograms Chappie to give him sentience. From there, the robot escapes, hooks up with Ninja and Yolandi Vi$$er from South African duo Die Antwoord, and starts wearing some serious gold chains around his robo-neck. Hugh Jackman, sporting an impressively bushy mullet, is sent to give chase to the humanoid android in his own mechanized creation.