I have nothing to lose so I experiment with my characters here in Bollywood, south actor Dhanush said. I am thankful to Balki who has given me this film. I don't have anything to lose here. Asked why he was doing unconventional roles in Bollywood as opposed to his larger-than-life roles down in southern cinema, Dhanush said, "I have been trying to mix my characters as much as possible down south... there one image is stuck so I am restricted. "It's an amazing experience to work with Amitabh. I don't know if I have done enough work to deserve to be working with Amitabh. God has blessed me with this film," he added. Southern star Kamal Haasan's daughter Akshara Haasan is making her debut in Bollywood with Shamitabh. Trailer of the film Shamitabh was launched yesterday and it was impressive.