Shamitabh belongs to Amitabh just like the magnetic baritone of Shamitabh belongs to Amitabh. Daanish, a mute wannabe actor (played by Dhanush) becomes a superstar but the magical voice that takes him to his heights is not his own. He borrows the voice from a failed actor who would prefers the company of whisky more than humans. Daanish’s silent secret is not known by anybody but a select few which include Amitabh and Akshara. Amitabh Sinha (Amitabh Bachchan), the voice of the superstar Danish, starts feeling that the reason for Daanish’s stardom is his voice. He also wants a share in the spotlight and starts acting out. That is essentially the gist of the movie. Like all previous Amitabh starrers of Balki’s this one too revolves around Amitabh. Amitabh is the pivot around which revolve the story, the dialogues, the acting and all the other stars.
Dhanush choose Shamitabh as his second Hindi movie after Ranjhanaa flopped. Probably he didn’t wish to be known as the south superstar who failed to make it in Bollywood. He took his time and selected Shamitabh after hearing as many as 33 scripts. Reportedly, he was quite kicked about the story as well as his own role in Shamitabh. Dhanush’s excitement about the movie was not misplaced; Shamitabh does break new ground and has probably the best dialogues and monologues of Amitabh in recent times. Dhanush’s mute character also saves him from delivering the dialogues in his accented Hindi, but it also cuts into his character’s meatiness. Dhanush and Akshara may have the lion’s share of screen time, but Shamitabh essentially belongs to Amitabh. His charismatic presence and deep baritone overshadows everybody else and leave little room for anyone else to shine.