Amitabh Bachchan took to Instagram to share a throwback picture with Shah Rukh Khan. In the picture, Amitabh could be seen signing a poster of his 1978 film 'Don'. "And...errr...continuing in the same vein...DON," Amitabh captioned the post. Reacting to the picture, a fan wrote, "Two super legends in one frame," while another fan wrote, "Are...DONs reuniting for DON 3?"