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rtial approach to the issue. Rather than separating the characters into victims and offenders, victims of racism are often shown to be prejudiced themselves in different contexts and situations. Also, racist remarks and actions are often shown to stem from ignorance and misconception rather than a malicious personality. While this is exactly the reason why the author write this thesis. Racism is ubiquitous in America, many researchers have studied the film and wrote many papers about the film. Most of the papers are about how the film acted to eliminate the racial discrimination caused by ignorance and misconception, and finally the characters in the film did it with the misunderstanding was resolved. However, no one discovers the underlying meaning that the rasicm in the film can not be eliminated for itself is a film with racial discrimination.Consequently, based on the theory of metaphor, the author will take all kinds of interpersonal relationships in the film as the research object, then analyze the specific plot and the cultural conflict in the film, finally to explain the underlying meaning of the filmracial discrimination can not be resolved under the social interpersonal conflict and cultural conflict. This thesis aims to unscramble the racial discrimination in America society through the film Crash, then achieve the purpose that people should face their racism so that they can finally learn to change the situation.2. Significance of this studyIt is well known that Crash is a famous and significant film, and it was thought highly of by massive media at home and abroad, so, a lot of researchers write various papers about this film. But no one find the underlying meaning of the film, and use metaphor to unscramble the racial discrimination in the film. While the author find that the creation intention and the essence of the film was not well demonstrated, therefore, it is necessary and significant to write this thesis to reveal the creation intention and the essence of the film.Ais a figure of speech that identifies something as being the same as some unrelated thing for rhetorical effect, thus highlighting the similarities between the two. The Philosophy of RhetoricI. A. Richardstenorvehicle. The tenor is the subject to which attributes are ascribed. The vehicle is the object whose attributes are borrowed. Moreover, some theorists have suggested that metaphors are not merely stylistic, but that they are cognitively important as well. InGeorge Lakoffand and Mark Johnson argue that metaphors are pervasive in everyday life, not just in language, but also in thought and action. A mon definition of a metaphor can be described as a parison that shows how two things that are not alike in most ways are similar in another important way. They explain how a metaphor is simply