Bengali superstar Prosenjit Chatterjee, who played Dr. Ahmadi, a social activist, in Dibakar Banerjee's "Shanghai", says initially he was reluctant to feature in a Hindi movie.

"Initially, I thought that Dibakar wanted to make a Bengali film with me. But when he told me about 'Shanghai', I paused and thought why should I do it?," the 49-year-old said Monday in an interview.

"But finally I decided to work in it because it had a nice subject, nice film. Yes, my screen space is less but the film is completely oriented towards Dr. Ahmadi," added the Bengali film actor.

"Shanghai" also stars Abhay Deol, Kalki Koechlin and Emran Hashmi and opened to good reviews at the box office.