Legendary actor Kamal Hassan regrets for declining the lead role in the film Quick Gun Murugan."I was initially offered the role. But I declined the offer as it was not a novel concept in South India. And I would rate the role in QGM as one of the biggest regrets of my life. I regret such situations as I could not make films that are close to his heart. Though some scripts are excellent they simply do not translate into a movie due to poor market demands. Over the years, I have liked many scripts but they just couldn't materialize into films. I feel sad that many times I couldn't do films due to market demands," finishes Kamal Hassan.