Contrary to the French school of comparative literature, which, according to it, only two written texts can be compared, in the American approach, it is possible to compare literary texts to various arts, including cinema. Since novels and films have many similarities, they are similar in many respects and are two comparable genres. These commons provide a good field for discussing a movie from the perspective of a new literary theory and criticism and allow us to use the concepts and terminology that we usually know as a tool for discussing the novel to critically explore the structure, devices, and themes of the film. On the other hand, in recent years, the term "postmodernism" has become popular in critical discussions about the novel, and many new fiction writers show much fascination in writing fiction with postmodern style. Therefore, in this research, firstly, by examining the views of some of the most important thinkers of postmodern literature, nineteen techniques used in postmodern novels were extracted, and with qualitative analysis method, use of them in an Iranian movie (i.e., Who killed Amir?) were examined. The results of the studies showed the proximity of literature and cinema (as a visual text) and the ability to compare these two written and visual texts. We realized that most of the techniques applied in writing postmodern novels were also frequently used in the reviewed Iranian film.