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.
This movie holds significance as it marked a milestone in Hong Kong's film industry, being the first 3D-CG film fully produced there. As a result, the card has become highly valuable. The director paid tribute to Jackie Chan by incorporating "outtakes" (or "NG"s) during the end credits. Filmed across China in 2005.