Flocked to see people in droves. What is billed as the world's first 3D porn movie opens when packing the cinema in Hong Kong, some screening Thursday sales pulled.

Loosely based on a Chinese classical pornography, the movie Cantonese - $3.2 million language - 3d sex and zen: extreme ecstasy "characteristics, dissolute, swinging and some very graphic sex scenes.

Curious people in droves. People from all walks of life - office workers, retirees and students - long queues formed outside the cinema in the southern Chinese city, eager to catch an eyeful of steaming 3D action.

There were many in the congregation who are female, isn't shy about watching movies.