Cheeni Kum – A Sugar Free Romance (2007 Film)

The boy is actually a 64 year old man, (Amitabh Bachchan) – Buddhadev Gupta. The girl is a 34 year old woman, (Tabu) – Nina Verma. 
Buddhadev Gupta  is the 64-year-old owner of one of London's top Indian restaurants.
He lives with his 85 year old mother and his only friend and confidante is his 9 year old neighbour

Cheeni Kum