Screenwriter Stirling Silliphant was a martial arts student and a friend of Lee. Silliphant worked with Lee and James Coburn on developing "The Silent Flute." Lee acted and provided his martial arts expertise in several projects penned by Silliphant, the first in "Marlowe" (1969) where Lee plays Winslow Wong a hoodlum well versed in martial arts, Lee also did fight choreographies for the film "A Walk in the Spring Rain" (1970), and Lee played Li Tsung a Jeet Kune Do instructor who teaches the main character in the television show "Longstreet" (1971), included in the script were elements of his martial arts philosophy.