‘Rangoon’ is set to hit the screens this week and leading lady Kangana Ranaut is about town promoting her biggie. At one of the many screenings of this Bollywood film held for the fraternity, Kangana said, “We are excited and nervous about the film at the same time, as the screenings and trials have started.” The actress promises a bold performance, starkly different from her previous portrayals. “‘Rangoon’s’ been a very challenging role and conscious efforts were made for this character to be different from my previous works,” added Kangana. The actress will romance Saif Ali Khan and Shahid Kapoor in this Vishal Bhardwaj directed dramatic movie.