警匪片是类型电影的一种亚类型.警匪片可以看作是一种系统,包括两层内容：叙事作为系统与视觉能指作为系统.美国警匪片作为大众媒体`神话’的文化存在,把美国意识形态的基本内容,包括资本主义、民主、基督教、家庭等核心的信念作为影片维护的常识性内容.警匪片策略性地弥合了意识形态的裂缝,它建立了一个关于美国政治与社会现实的`神话’. The gangster film is a subtype of genre film.The gangster film can be regarded as a kind of system, including two layers: the narrative as a system and the visual finger as a system.As the cultural existence of the myth of mass media, the American gangster film takes the American ideology Which includes the core beliefs of capitalism, democracy, Christianity and family as the commonsense contents of the film.Political and crime films strategically bridge the gap of ideology and establish a `` myth ’’ about the political and social reality of the United States .