Bollywood actor Varun Dhawan says he received words of encouragement from superstar Shah Rukh Khan, who was to originally play the role that he now essays in the upcoming epic drama "Kalank". The actor was present along with Madhuri Dixit Nene, Sonakshi Sinha, Aditya Roy Kapur, Sanjay Dutt, Kunal Kemmu and Alia Bhatt at the trailer launch of the film.