Query: Hong Kong superhero films
Relevant documents:
Astro Boy (film)
Legend of the Fist: The Return of Chen Zhen
Mr. & Mrs. Incredible
The Four (film)
Teenage Mutant Ninja Turtles (1990 film)
The Super Inframan
The Heroic Trio
Black Mask (film)
Silver Hawk
Executioners (film)
Black Mask 2: City of Masks
Supermen Against the Orient