Indian films and science fiction have somehow been incompatible all this while, unless, of course, you consider the Krrish series. Our literature lacks a Ray Bradbury and an Isaac Asimov, and the little we do have reeks of amateurishness. The reason is simple - our writers have not been able to grasp the essence of such fiction. And then along comes Rajkumar (Raju) Hirani, who, with his genius and profound understanding of fiction, marries the genre with a social message, and we get a delightfully quirky movie - PK, earlier known as Peekay.