2.0 is off to a good start at the box-office. The Hindi version of the Shankar directorial, starring Rajinikanth, Akshay Kumar and Amy Jackson in the lead roles, earned Rs.20.25-crore on opening day. 2.0, the sequel to 2010 blockbuster Enthiran, has Rajinikanth reprising his roles of doctor Vaseegaran and Chitti, the robot. Joining him is Bollywood star Akshay Kumar who makes his Kollywood debut.