Judging by the ellipsis, the guy writing the credits couldn't believe this bullshit either.
For one hot second, The Good Earth considered doing something so risky that even modern studios are still grappling with how to pull it off: casting a nonwhite actor in a nonwhite role. The role of O-Lan, the movie's heroine, almost went to Anna May Wong, the first Chinese-American movie star. The book's author was pushing the studio to cast only Chinese actors and even film in China, and while authors usually have about as much influence on movies as the craft services people, one of the producers really liked the idea. But then the studio ran into logistical problems with the Chinese government. Fortunately, they also remembered that it was '30s, everyone was super racist, and the average American wouldn't give a shit if they cast a bunch of white people instead. So for the sake of both simplicity and American racial purity, Wang the Farmer was portrayed by Paul Muni, a role the Chicago native was born to play.
"And the award for Most Vital Comma goes to ..."