3D Sex and Zen: Extreme Ecstasy is a 2011 Hong Kong 3-D erotic costume drama film released in Hong Kong, South Korea, Australia, and New Zealand on 14 April 2011. It is a new installment of the Sex and Zen series, but more dark and dramatic as well as occasionally paying homage to the humor of the film series.
3D Sex and Zen is essentially an adaptation of the classical novel The Carnal Prayer Mat depicting the sexual exploits of a young Ming Dynasty scholar named Wei Yangsheng. It is produced by Stephen Shiu, the executive producer of its predecessor film Sex and Zen. The film was falsely promoted as "Hong Kong's first IMAX 3-D erotic film". The film was actually rejected by IMAX due to the subject matter and content. Its cast includes Japanese AV idols. Laughing aloud, producer Stephen Shiu Yeuk-Yuen described the experience of watching this film onscreen: "It is just like [being a] voyeur near someone's bed."[