A friend of mainland actress Siqin Gaowa and an accomplice were jailed yesterday for detaining and assaulting a debt collector he had hired to retrieve wages owed to the movie star for her role in a multi-award-winning film. Iu Chun-chuen, 63, and Tse Tung-lok, 44, were jailed for two years and 2.5 years respectively. They had both pleaded not guilty in the District Court to one count of false imprisonment and one of assault, which took place on February 24 last year. Judge Judianna Barnes Wai-ling heard Ms Siqin had played a supporting role in the film In the Heat of the Sun, which won six Golden Horse Awards in 1996. However, by 2000 she had still not been paid her $220,000 fee and had asked Iu, a friend, to help her get the money from producer Manfred Wong. Iu enlisted the help of retired screenplay writer Chan Kok-chai, 62, promising to pay him $10,000. In turn, Chan contacted a professional debt-collection agency. Later Mr Chan told Iu he had collected only $38,500, but when Iu called Mr Wong, he claimed to have paid the full amount to the debt-collection agency. Iu, Tse and three unidentified men went to Mr Chan's Tsim Sha Tsui home on February 24 last year. They tied him up and threatened to 'bury him in a hillside' if he failed to pay up. But Mr Chan escaped and alerted neighbours, who called police.