Richa Chadha nervous over 'Cabaret'

The actress feels lucky to be a film dealing with such a "sensitive subject". She added: "I think all actors want to be able to play diverse roles, hence I feel lucky. 'Sarbjit' is a sensitive subject, and deals with the life of a real person. I got an opportunity to again perform a challenging character and even though it was a serious film, I had fun during the filming and made great friends."