Anecdotes

Won Jin did all of his own stunts apart from the one where his character is kicked out of the window and onto the stairs below. This stunt was performed by stunt man Chi-Chuen Cheung, who was very seriously injured and took a long time to recover.

Won Jin uses his legs almost exclusively in the fight scenes, rarely using his hands and instead focusing on his kicking and gymnastic skills to amaze the audience.

Ka-Lok Chin is a break dancing champion, explaining the origins of some of his moves.

All the hand-drawn illustrations that the character Yuk-shu created in the film were drawn by Ka-Lok Chin himself.

Biao Yuen was the original action director for this movie, but this role was ultimately performed by fellow "7 Little Fortunes" member Tak Yuen.