] 3d Sex And Zen: Extreme Ecstasy - [18

: In Hong Kong, it grossed HK$2.78 million on its opening day, surpassing the previous record set by James Cameron's Avatar .

: Much of the action takes place in the "Pavilion of Ultimate Bliss," an orgiastic lair ruled by the Prince of Ning.

: The film features a pan-Asian cast, including Japanese AV idols Saori Hara and Yukiko Suho alongside Hong Kong actress Vonnie Lui. UK censors demand cuts to 3D Sex And Zen: Extreme Ecstasy

: Because the film was banned in mainland China due to its Category III rating (adults only), thousands of mainlanders famously traveled to Hong Kong specifically to watch the film.

: Many viewers found the second half of the movie unexpectedly dark, as it shifts from a bawdy comedy to "torture porn," involving scenes of sexual slavery and extreme violence.

Directed by Christopher Sun and produced by Stephen Shiu, the film is loosely adapted from the 17th-century erotic novel .