Pk is the movie in which amir khan is not from earth he is from different planet but he land on earth and he has thing on his neck that is to call his people of his planet. someone stole his thing. and he has to find he goes to delhi and saw it but they say this is not yours. he says don’t belive like madness . this movie is base on people who belive in god like madness.the cast performance is good. all the actors and other peole done a great job.all the songs are good.and camera quality is also very good.