Farhan Akhtar and Amitabh Bachchan pack a punch in 'Wazir' teaser

Amitabh Bachchan and  Farhan Akhtar together in one film- that says it all. When Vidhu Vinod Chopra  Films and  Rajkumar Hirani  Films decided to produce  Wazir , initially titled  Do , the c…