Corrected entry: In Shanghai, when Ethan's partners are shooting baseballs to get the security guards' attention, you can hear that the Chinese that they are speaking is not the specific "Shanghai" Chinese. They are speaking rather a Hong Kong-Taiwan tone.
tw_stuart
21st May 2006
Correction: Hong Kong and Taiwan speak different languages with very different accents. Most Chinese speak at least two versions of Chinese, Mandarin and whatever is appropriate for their region (Cantonese for HK and Taiwanese for TW), so there's no mistake to hear residents of Shanghai speaking Mandarin Chinese.
tw_stuart