Having made people laugh with his signature black comedies, director Edmond Pang Ho-cheung's next step is to make them weep. His new film, Isabella, starts shooting at the end of this month, and promises to be a serious, emotional picture. Pang says he'll be doing his best to make audiences cry. 'If they don't cry, I'll cry,' he says. Isabella is the first project from Not Brothers, the company Pang set up a year ago with actor Chapman To Man-chak. Pang says he's known To since they both worked at ATV more than a decade ago. 'He always wanted to set up his own company because he envies Sir Run Run Shaw's entertainment empire,' he says. To will play a cameo as a father in Isabella, in which he re-unites with his long lost daughter, played by EEG's new star Isabella Leung Lok-see. 'The father thinks his girlfriend got rid of the baby but she hasn't. And years later the daughter comes back,' he says. After winning the best new director award at last year's Hong Kong Film Awards, and receiving a Golden Bauhinia award for the script of Beyond Our Ken earlier this year, Pang (below) has been dubbed by some as the new hope of Hong Kong cinema. But the director, who's also a scriptwriter and novelist - his Fulltime Hitman was adapted into a movie, Fulltime Killer, by Johnnie To Kei-fung - says writing the script for Isabella has been difficult. 'When you're writing about two people's relationship, you have to dig deep into their emotions and feelings,' he says. Pang says the new film should be completed in September.