Former Miss World and wife of Bollywood actor Abhishek Bachchan Aishwarya Rai said that upcoming flick 'Paa', which features her husband and father-in-law Amitabh Bachchan, is more about inter-personal relationships, in New Delhi.Aishwarya Rai addressed the media at the Longines (a brand of watch) ad launch at a luxury hotel in the city. She has been the ambassador of the brand for over ten years now.It would be tough to mention any one particular aspect, but yes, for sure what is most special is that this is for the first time that Longines has gone ahead and made an ad film shoot with me. We have always had photo shoots for over ten years, but this is for the first time that we have actually made an advert. And that to me is truly going to underline my ten year association with the brand. We actually have an ad film today, after ten years, said Aishwarya Rai, Bollywood actor.To put it simply, what is really special about 'Paa' is that it is a simple story, as you would expect from Balki, the maker of 'Cheeni Kum' (a Bollywood film) and it's pleasant. Though it does have the principal character 'Auro' who is born with Progeria, but it isn't the one that gets too heavy on its content. It's more about inter-personal relationships, said Aishwarya Rai, Bollywood actor.