The movie's source 1978 Tony Kenrick novel "Faraday's Flowers" was re-published under the film's "Shanghai Surprise" title as a promotional tie-in when the movie was released.
During the bathhouse scene Justin tells Glendon that the Chinese use tomato juice to remove the stench of skunks.
Of course there are no skunks in China. Skunks live only in North America.