Since this movie is the first 3D-CG film fully rendered in Hong Kong, the card is now a rare collectible item. The idea of using "outtakes" (better known as "NG"s in Hong Kong) during the end credits was used by the director as a homage to Jackie Chan films. The film was filmed at Beijing, China, Hong Kong, China and Yun Cheng, Shandong, China in 2005.
As the world's first fully computer-generated 3D film produced entirely in Hong Kong, this card has become an extremely valuable collectible item. The director incorporated a nod to Jackie Chan films by using "outtakes" (or "NG"s) during the end credits. Filmed in Beijing, China, Hong Kong, China and Yun Cheng, Shandong, China in 2005.