Arjun Rampal is gearing up for the release of ‘Daddy’ this Friday, in which he plays the title role of Arun Gawli, but the Bollywood film on this don is giving him some jitters. “There is a bit of nervousness as there are a lot of expectations from the biopic. My friends, who saw the movie, gave a positive response. I am hopeful that the audiences too will give the film a chance,” says Arjun. The actor, who has co-written and produced the film along with acting in it, adds that ‘Daddy’ has been the most challenging film of his career, “‘Daddy’ is like a pressure cooker because it is a tense subject. You need to buy rights from different people. There are a lot of periods, so maintaining all that and bringing authenticity to the story, there is a lot to it. But I am very happy with the end result.”