Filmmaker Rajkumar Hirani said he had offered the part of Sunil Dutt to Aamir Khan for the Sanju biopic but the superstar was reluctant to play an older character after Dangal. Aamir Khan recently revealed that he was offered the role of Sunil Dutt in the biopic, but he was more keen to play the lead role, which was already with Ranbir Kapoor.