Stephen's film career spanned many stages and he had many acclaimed works in his career. However, if one had to choose the best work, it would probably be one of his representative works: A Chinese Oath to the West: The Moonlight Box. The movie was a collaboration between Stephen and David. It was a love story that traveled back in time. The film's special effects and soundtracks were excellent, and Stephen's performance was also highly praised. In addition, the film also won many awards, including the Hong Kong Film Awards and the Taiwan Film Golden Horse Awards. It became one of Stephen's representative works.