Continuity mistake: When the villains get the last of the plutonium out of the cache, we see one villain shoot the chain suspending a concrete cap; causing it to fall and close the hole. A short time later, we see Maggie exclaim that the plutonium is gone. The cap could not have been lifted because all the miners were taken away, yet the cap is gone and we can see into the cache.
Trivia: All of Jet Li's scenes were filmed in Hong Kong, because he was working on another movie at the same time.
Trench: My shoe is bigger than this car!