Amitabh Bachchan is an actor exceptional but when he is seeing other actors’ work, the viewer in him comes out to the fore. Something similar happened after he watched Anurag Kashyap directorial, Manmarziyaan. The actor has dashed off a letter of appreciation each to two of the film’s leading actors -- Vicky Kaushal and Taapsee Pannu. The film is Abhishek Bachchan’s first film after two-year sabbatical.