By analyzing the multimodal grammar of films, the deeper concepts that the designers want to express can be better conveyed to the audience, and the expectations of the moviegoers can be enhanced. Therefore, based on the analysis of the classic Zhang Delu’s comprehensive theory of multimodal discourse, the article proposes the multimodal discourse analysis framework used in this paper to explore the ideologies implied in the text and images of movie subtitles and the images they construct and the inspirational meanings they draw from. It is found that among the 150 clauses in the corpus analysis, 28% are material processes, 22% are mental processes, 12% are verbal processes, 14.67% are relational processes, 17.33% are behavioral processes, and 4.67% are existential processes. Through multimodal grammar analysis, the discourse tendencies of the traditional culture-adapted movie can be effectively grasped.