As "Paa" completed five years, megastar Amitabh Bachchan thanked director R. Balakrishnan for coming up with an "innovative creativity".

The movie, which released Dec 4, 2009, shows the relationship of a politician (played by Abhishek Bachchan) with his son (essayed by Amitabh), who suffers from a disease that causes him to age rapidly.

"'PAA' released today (Thursday) 5 years ago!!! Thank you Balki for this 'innovative' creativity.. NOW... 'SHAMITABH'... booommbaa!!" Amitabh tweeted.

The duo's next offering is "Shamitabh", which also features Dhanush and marks the Bollywood debut of southern superstar actor Kamal Haasan's daughter Akshara. The film is expected to hit the screens Feb 6, 2015.