New Delhi: After the special screening for Irrfans Piku co-star Amitabh Bachchan, the makers of Blackmail organised a special screening for Bollywood directors. Renowned filmmakers like Rajkumar Hirani, Amol Gupte, Nishikant Kamat, Ashutosh Gowarikar, Tanuja Chandra, Meghna Gulzar, Ravi Udyawar, Rensil DSilva, Sudhir Mishra, Sriram Raghavan, Soumik Sen, Pradeep Sarkar and