Shah Rukh Khan has opted out of the biopic on Rakesh Sharma titled 'Saare Jahaan Se Achcha' for Farhan Akhtar's 'Don 3', suggested reports. Aamir Khan, who was earlier part of the film, had suggested Shah Rukh's name for the biopic. There are reports that Fatima Sana Shaikh will star in the film which will be directed by Mahesh Mathai.