This is a HK comedy that spoofs Hollywood actors, as evident from the characters' names.
In a nutshell, this is basically a screwball comedy with non-sensible jokes and elements and crude humor that has virtually no plot and no suspense. It's just one poor attempt at a joke after the other. The stars' talents were not utilized to the fullest in the movie and there are no redeeming qualities in their acting or purpose in the movie whatsoever.
Watch this movie at your own risk. There are plenty of other comedy with laugh-out-loud humor than this.