Since Amazon hasn't given you a summary, here's mine: Young ne'er-do-well Su Chan (Chow) falls in love with a courtesan. In order to win her hand in marriage, he signs up for an imperial examination to become a military officer. For reasons partially attributable to Tin Li Jiao, an evil Taoist sorcerer and martial artist, and partially attributable to Su Chan's own laziness and his father's dishonesty, Su Chan winds up a beggar. He uses kung fu to rescue his ladylove and the Emperor when they fall into the clutches of Tin Li Jiao.
The version I have (didn't buy it from Amazon, but looks like the same one) is in Cantonese and Mandarin with subtitles in traditional characters and English. The subtitle translations are just bad enough to be amusing, but not so bad as to be confusing. Because the English subtitles are plain white, they are hard to read against a light background. Fortunately, the plot of the film isn't so subtle that reading every subtitle is critical.
I thought the film was entertaining and funny. Not a masterpiece, perhaps, but better than many action/comedy films out there. I'll definitely watch it again.