It appears that the version of the movie we're given in Region 4 is the US version which is shorter than the original Hong Kong release. To see a list of the cuts that have been made you can go here: http://www.imdb.com/title/tt0113326/alternateversions.
This isn't the first time that one of Jackie's movies has been cut down in the western version (out of this three disc box set, two movies have been cut!), and it's a practice I find disturbing and hard to understand. Sure we love seeing the man risk his life for our entertainment, but then we'll let some guy in a suit decide which parts of his movies are worth seeing in the west. I think he deserves more respect than that.
(Note that this is not a case of censorship. The cuts were made by the film's US distributor. RodW, 18/2/2004.)