Spy thriller Lust, Caution is not 'Hong Kong enough' to qualify for the Hong Kong Film Awards' main categories. The latest hit by director Ang Lee can only pursue the best Asian film prize at the event which is centred on local films, according to Joe Cheung Tung-cho of the Hong Kong Film Awards voting affairs committee. Last week the film was rejected as Taiwan's entry for best foreign film in the Oscars. The Academy of Motion Picture Arts and Sciences decided it was not Taiwanese enough to represent the island in the contest. 'Not enough Hongkongers worked on the main positions in the making of the film,' said Mr Cheung, also honorary permanent president of the Hong Kong Film Directors' Guild. 'The Hong Kong Film Awards was set up for Hong Kong films,' he said. 'There are clear-cut rules saying a film must satisfy any two of three conditions.' To qualify for the event's main categories, a film needs to have a Hong Kong director, a Hong Kong-registered film company and at least eight key positions filled by Hongkongers. But the film has a complex international identity, involving two American and two Taiwanese film companies. It stars Hong Kong actor Tony Leung Chiu-wai and mainland newcomer Tang Wei and includes other lead characters from Taiwan, the mainland, Hong Kong and the US. Taiwanese-born director Lee lives in America, while scriptwriter Wang Hui-ling is Taiwanese. The film's music composer, Alexandre Desplat, is French and the cinematographer, Rodrigo Prieto, is Mexican. The movie was shot in Shanghai and in locations in Zhejiang province , as well as in Ipoh, Malaysia - which served as Hong Kong for 1930s and 1940s scenes. Lust, Caution is an adaptation of a short story of the same name by Chinese author Eileen Chang. Set during the second world war, it revolves around the relationship between anti-Japanese activist Wong Chia-chi (Tang Wei) and Mr Yee (Tony Leung Chiu-wai), the collaborator she is sent to bed, trap and kill.