Ranbir Kapoor has made an inspiring transformation for the untitled biopic on Sanjay Dutt. The actor has built up a lot of muscles, bringing to the silver screen Sanjay Dutt’s muscular times. Ranbir Kapoor’s trainer, Kunal Gir shared a picture with the actor, who is seen flaunting his beefed up body. This picture of Ranbir was taken when the actor was shooting with Sonam Kapoor and Anushka Sharma in New York for the Dutt biopic. Sanjay Dutt biopic is one of the most awaited Bollywood films of 2018, with director Rajkumar Hirani immortalising his favourite actor on the silver screen.