Emerging from Hong Kong's bustling film scene, Billy Chan Wui-Ngai honed his abilities as a stunt performer and fight choreographer before expanding into acting, directing, and producing. His early acclaim arrived with a Hong Kong Film Award for Best Action Choreography in 1983, shared with Sammo Hung, Lam Ching-yung and Yuen Biao for the martial-arts drama The Prodigal Son, and subsequent choreog…