Amitabh 84th birthday: Imtiaz hails ‘once-in-a-lifetime’ icon

Filmmaker Imtiaz Ali says there will never be another Amitabh Bachchan, who turned 84, and hopes to work with him someday after directing him in an ad film. Marking 25 years in cinema, Ali calls filmmaking a privilege, not pressure, and wants to give audiences a gift back.