The Hui brothers revolutionized Hong Kong movie making style with this and other movies. Especially San Hui who also wrote the songs for the movie, invented the modern comedic Hong Kong movie that involves lot more elements than was previously seen in Hong Kong cinema.
There's action, comedy, slapstick, and above all unique plot that all combines into an entertaining movie.
In about 10 years from the making of this movie, quality of Hong Kong cinema starts to skyrocket, and eventually rivals the movies made in Hollywood. But you can see all the elements that turned Hong Kong cinema in modern direction with this movie.
It's a ground breaking movie, and also a very good movie to watch as well. Music is also pretty cool.
This is a must see movie for an Asian movie fan.