Headed by the supremely creepy Weaving as the relentless Agent Smith (think Terminator meets the X-Files' Cigarette Smoking Man), Reeves and his crew put themselves through some of the most rigorous stuntwork this side of Jackie Chan (indeed, the martial arts sequences, of which there are many, were overseen by longtime HK fight choreographer Yuen Wo-Ping of Once Upon a Time in China, among others).
Two of the three share the same writers and the same martial arts coordinator, Yuen Woo-ping (also the fight coordinator for "Iron Monkey," "The Matrix" and "Crouching Tiger, Hidden Dragon").