Making biopics is a craze in Bollwood these days. And,  actor Sanjay Dutt  who has been recently released from prison for keeping arms illegally,  is the  natural subject  for it.  In fact, the  industry had conceived the idea even before Sanjay`s release.  The  news of Dutt`s biopic starring Ranbir Kapoor have been doing the rounds since quite a long time. But just when it looked like things are going to happen, it has reportedly fizzled out.  His biopic  might not go on floors anytime soon. People close to director Rajkumar Hirani have claimed that a small dispute has erupted between the makers and the producers of the film regarding the production rights and that is touted to be the reason this ambitious project being put on hold.  This is to recall that biopics based on personalities is sa usually tend to bring out some  uncomfortable truths out of the closet. With Rajkumar Hirani`s biopic on Sanjay Dutt in the making, Madhuri Dixit called Sanjay up concerning the same. After all, both the stars had given several blockbusters earlier,  and were  therefore rumoured to be dating back in  those days.