The Invisible Man was only an action film with no science fiction elements.
 While action has long been a recurring component in films, the "action film" genre began to develop in the 1970s along with the increase of stunts and special effects
 Because of their roots and lower budgets, Hong Kong action films typically center on physical acrobatics, martial arts fight scenes, stylized gun-play, and dangerous stunt work performed by leading stunt actors

