Director Abhinav Kashyap, who made a strong debut in Bollywood with blockbuster movie ‘Dabangg’, starring Salman Khan, is busy with the promotions for his second movie ‘Besharam’.

Abhinav Kashyap, who worked with Ranbir Kapoor for the first time in ‘Besharam’, is all praise for the actor. The director even went ahead to call Ranbir Kapoor the biggest Superstar of today and would remain one for the next 15-20 years.

When a popular daily asked about the difference in working with Salman and Ranbir, Abhinav Kashyap said that Salman Khan was more of a spontaneous actor, while Ranbir Kapoor is the most hardworking actor he has come across.

“Salman never rehearses and often forgets his lines. He is very spontaneous, though. A lot of times, even the director is in the dark - we don't know what he'd say in a particular scene until he goes ahead and says it,” said Abhinav Kashyap.

“Ranbir is the most hardworking actor I have seen. He rehearses meticulously, sometimes days in advance,” he added.

 Abhinav Kashyap said that he was lucky to have gotten an opportunity to work with Ranbir Kapoor.

The director also threw some light on the title of the movie and said, “There is a very famous saying ‘Ki duniya maie sabse bada rog ki kya kahenge log.’ I think the point of the title ‘Besharam’ is not that you become shameless. But it means don't be afraid of what the society will say or the world will say. If you have your own thought process and point of view then it doesn't have to be what the world says is right or wrong. I think that's where it comes from.”

Along with Ranbir Kapoor, the movie also stars Ranbir Kapoor’s parents Rishi and Neetu Kapoor. The movie stars debutant Pallavi Sharda as the female lead.

 In ‘Besharam’ Ranbir Kapoor plays a con artist, while Rishi and Neetu Kapoor play cops who purse Ranbir Kapoor.

The movie is all set to release on October 3 this year.