Watch Thunderclap for Free: How to Stream the Movie Online at 123Movies. . A clever Shaw Brothers wuxia comedy about a young antihero (Tony Leung Siu Hung) getting himself and his friend (Max Mok) into all kinds of trouble and ultimate defeating the "Heavenly Demon" (Chen Kuan Tai). Lightning fast action, pleasant humor, great acting and a helpful modern-day narrator makes this an unusually enjoyable Shaw Brothers production.