Trivia

In the scene where they are buying clothes for Jet Li's character, Jet dresses up as several well known movie hitmen, such as Léon in Léon: The Professional (1994) and Mark in A Better Tomorrow (1986).

This is the only Hong Kong movie where Jet Li used his own voice.

The "ashes" of the main villain's grandfather was actually sugar.

In Kiki's bedroom is a poster for the movie Three Colors: Blue (1993).