Brittany Murphy is the MVP in this but Mark and Kadeem do a pretty solid job too. Lot of really fun HK-style action choreography on a budget (I especially loved the homage to the motorcycles in Hard Boiled).
Funny that Rush Hour came out the next year. In a perfect world this spawned a bunch of goofy sequels, and replaced the Rush Hour films completely.
Oh! And has there ever been a better in-movie TV show than "Walter, the Einstein Frog"?