We see in this film three of Yeoh's special qualities This is, of course, one of Jackie Chan's best films. And one of Michelle Yeoh's, too. In fact, it is the chemistry between the two that makes the film stand out.
I have, for a long time, been trying to put my finger on what makes Yeoh so special on screen. This film provides three partial answers.
First, the chemistry. Her best roles have been those in which she is paired with a strong co-lead -- usually male, but at least once a female -- with whom she has a somewhat adversarial relationship marked by growing mutual respect. In a sense, her unique character is best seen by the sparks thrown off as others try to deal with her as a conventional woman. This is what made TOMORROW NEVER DIES so entertaining.
Second, watch the scene in the smugglers boat when she springs to alert as the police boats spot them. It is a small, incidental moment. But I suddenly realized, as I watched it for the fourth time recently, who she has so much reminded me of all this time. Toshiro Mifune. My favorite actor as a youth. What made Mifune unique was that tightly coiled intensity, that explosive athleticism, that he brought to all his roles. It came out notably in his dramatic use of facial expressions -- to express emotion or exertion. And in his body movements -- at turns muscular, fluid and explosive. Michelle Yeoh is a female Toshiro Mifune. She uses her face the same way. And her movements have the same power.
Third, watch the outtake in which Jackie Chan is struck by the martial arts training wheel. Michelle Yeoh never leaves her character. As everyone scurries around laughing and joking, Inspector Yang strides serenely with her hands clasped behind her back. Even her look of amused surprise has Yang's condescension. She is inside her role. Mifune, I have read, used to stay in character through an entire day of shooting. In 1941, he even insisted on drilling his Navy crew for days to get the right feel. I sense that Yeoh is equally dedicated to her roles.