The two veterans Amitabh Bachchan and Rishi Kapoor will be seen together as a father-son duo in their forthcoming movie '102 Not out', they were asked if they had any 'healthy' rivalry on the sets of the film. Senior Bachchan gave a very diplomatic answer, whereas Rishi Kapoor-knowing how straight forward that he is, spilled the beans about Amitabh Bachchan's rivary against late actor Vinod Khanna and Shatrughan Sinha in the yesteryears time.