Hong Kong action cinema is the principal source of the Hong Kong film industry's global fame. Action films from Hong Kong have roots in Chinese and Hong Kong cultures including Chinese opera, storytelling and aesthetic traditions, which Hong Kong filmmakers combined with elements from Hollywood and Japanese cinema along with new action choreography and filmmaking techniques, to create a culturally distinctive form that went on to have wide transcultural appeal. In turn, Hollywood action films have been heavily influenced by Hong Kong genre conventions, from the 1970s onwards.

Bruce Lee was a Hong Kong-American martial artist and actor. He was the founder of Jeet Kune Do, a hybrid martial arts philosophy drawing from different combat disciplines that is sometimes credited with paving the way for the combat sport mixed martial arts (MMA). Lee is considered by some commentators and martial artists to be the most influential martial artist of all time and a pop culture icon of the 20th century, who bridged the gap between East and West. He is credited with promoting Hong Kong action cinema and helping to change the way Chinese people were presented in American films.