What is the name of the instructional film recorded by the trainer of Wan Kam Leung?
Wong Shun Leung Wong Shun Leung (; 8 May 1935 – 28 January 1997) was a Chinese martial artist from Hong Kong who studied Wing Chun kung fu under Ip Man (葉問) and was credited with training Bruce Lee. In interviews, Wong claimed to have won at least 60, and perhaps over 100, street fights against martial artists of various styles, though these numbers cannot be independently confirmed. Due to his reputation, his students and admirers referred to him as 'Gong Sau Wong' (講手王 or 'King of Talking Hands'). Wong recorded one instructional film entitled "Wing Chun: The science of in-fighting".
No Retreat, No Surrender No Retreat, No Surrender is a 1986 American martial arts film directed by Corey Yuen in his American directorial debut, and starring Kurt McKinney and Jean-Claude Van Damme. The film was released in the United States on May 2, 1986. McKinney performs as Jason Stillwell, an American teenager who learns karate from the spirit of Bruce Lee. Stillwell uses these lessons to defend his martial arts dojo against Soviet martial artist Ivan Kraschinsky (Van Damme).