摘要：Human activities could never escape from the domain of communication theories. rhetorical theory has beenconsidered as the basic art of persuasion, which covers various discourses in different fields including films in themedia. The film of Forrest Gump has been defined as a rhetorical piece from the perspective of communicationtheories. This essay attempts to cultivate the depth of the film theme by using the rhetorical theory with evidence,identifying three critical element: pathos, ethos, and logos. In the film Forrest Gump, pathos refers to theunconditional love and simplicity of the characters;Ethos confirms the credibility by examples such as historicalconnections;and logo is supported by the evidence in accordance to the law of causality. The analysis is a positiveinspection with truth messages and considerable thoughts, which have to some extend cultivated the theme of loveand simplicity, suggesting Forrest Gump is indeed a good movie worth watching.