Ranbir Kapoor is currently busy stepping into the shoes of actor Sanjay Dutt for the upcoming biopic to be directed by Rajkumar Hirani.

The actor said that the movie will be an honest portrayal of Sanjay Dutt’s life and won’t gloss over the controversies associated with the actor.

"The audience will get to know the real Sanjay Dutt. There is a certain image about him because of the controversies and his imprisonment. Whatever we have shown in the film is an honest portrayal. There is no exaggeration nor is it a propaganda film. It is not like just because we are making a film, we have to show him in a very positive light," said Ranbir Kapoor.

The actor confessed that he was initially apprehensive to take on the role as the story is very honest.

"When Sanjay Dutt heard the story, he never asked for a change, which I think is very brave of him," he said.

The actor finds Dutt's eventful life fascinating and says it is an honour to get a chance to portray him on-screen.

"I don't know how someone can live a life which has so many ups and downs. It will take me 100 lives to replicate it... He is very child-like, has a positive outlook in life at the face of hardships and tough times. He also has a very strong will," he said.

Rajkumar Hirani and Sanjay Dutt are close friends as they have worked together in in two "Munnabhai" films. Hirani revealed that he does plan on making the third installment with the actor.

"When Sanjay Dutt came out of jail we went to meet him for the third 'Munnabhai' film. But he started telling us about his life and it was so interesting and engaging. It was about this beautiful relation between a father and a son and we decided to go ahead with it first. We will definitely start work on the next 'Munnabhai' soon," said Hirani.

The movie also stars Paresh Rawal, Manisha Koirala, Sonam Kapoor, Anushka Sharma and Karishma Tanna.

The movie will release this December during Christmas.