Wire fu is a technique used in martial arts films that involves the use of wires to create gravity-defying stunts and movements. This method allows actors to perform incredible feats, such as flying or jumping great distances, enhancing the visual impact of fight scenes. Originating in Hong Kong cinema, wire fu combines traditional martial arts with innovative filmmaking techniques. It gained popularity in the 1990s, particularly in movies featuring stars like Jet Li and Donnie Yen. The use of wires adds a fantastical element to action sequences, making them more entertaining for audiences.