The name Amitabh Bachchan flashed in the theatre screens for the first time on this date, 50 years ago, as Big B made his debut with 1969 film Saat Hindustani. Amitabh Bachchan, who just clocked 50 years in the film industry, was paid a heart-warming tribute by his son actor Abhishek Bachchan on Instagram, who celebrated the era of Bachchan with an Instagram post.