Prior to this, Abhishek shared the screen space with papa Bachchan in the film 'Paa'. And now again father-son duo will shine in the same flick. The director R. Balki roped in Abhishek Bachchan for this cameo role, as per the report. Abhishek's role was added in the movie lateron. 'Shamitabh' also features Dhanush and Akshara Haasan.