Rani Mukherji and Amitabh Bachchan in BLACK: It’s quite astonishing to believe in Sanjay Leela Bhansali’s ‘Black’ who teaches whom? First its Amitabh’s poignant yet rustic act which motivates a blind Rani Mukherji to live life on her own terms. While at the end of the film its a sort of a role reversal as Rani takes the role of the teacher for her ill professor.