Keysi Fighting Method ( KFM ) is a self-defense system that is based on the natural instinct of fighting and different techniques of street fighting developed by Justo Dieguez
Serrano from his experience gained from fighting in the streets of Spain. The system was established with the help of Andy Norman. Both founders, Andy Norman and Justo Dieguez, are
certified instructors in Jeet Kune Do under Dan Inosanto. The Keysi Fighting Method became famous after it was used in combat choreography of the film Batman Begins and its sequel, The
KFM was created in 1950 on the streets of Spain and is in a constant state of evolution. KFM makes use of multiple intervals of attack, with or without arms.