Actor Ranbir Kapoor will be seen in Rajkumar Hirani's upcoming movie which will be based on Sanjay Dutt's biopic. Sanjay is very excited for this project and he also revealed that,"It will be a collaborative project between both our productions houses," Currently, he is busy spending some time with his family and after that he will start shooting for Siddharth Anand's action film by the year-end, He also admitted,"But I am most interested in the biopic" . He will not act in his biopic so it will make Ranbir's job even harder. He also added," It will be a problem for him because he will need to grow his hair out, get really lean at first and then beef up. It's a physically challenging role for any actor. Who said it was easy being me?" 
The sources of Mumbai Mirror also told," The first sequences to be shot are from the 1990s, when Sanjay acted in films like Thaanedar, Saajan, Gumrah, Khalnayak, Aatish, Safari and Kartoos. After that they will go back by a decade to the '80s, which will focus more on his personal life. There won't be any archival footage used though."