The film is adapted from Steinbeck's novel of the same name, which is very critical of current affairs. When Chinook considered filming the film in 1940, he fully understood what trouble the work would bring to his company politically, so the shooting process was full of mystery, due to concerns about Oklahoma and Texas. State commercial organizations would obstruct them from filming in the state. The company blocked all relevant information and declared to the outside world that it was shooting a film called "Route 66".
It is said that there are a large number of enthusiastic people with unknown insider who are afraid that Zinuk will not dare to shoot "The Grapes of Wrath", and have written to him to criticize. In Cinuk, it is precisely because of the fear that the future film will be blocked by the powerful groups, so he tried his best to dilute the political sharpness of the novel, such as the large number of detailed descriptions of the recruitment company deceiving and exploiting the workers in the novel, and the businessmen's treatment of the refugees. All the illegal acts we have taken have been deleted. There is no direct accusation against the police in the film.
Mary Woodward is too plump in appearance, not very much like the poor peasant aunt in the film. In order to make up for Darwell’s physical shortcomings, director Ford avoided any rough behavior in Darwell’s performance.
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The film failed censorship in the Soviet Union that year because the Soviet censors could not understand why the poorest family in the United States owned a truck, which they believed was suspected of beautifying capitalism
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