The document discusses how the film Shrek utilizes various techniques of postmodernism such as self-referentiality, intertextuality, pastiche, and blurring reality and fantasy. It examines how Shrek challenges and plays with conventions of fairy tales and Disney films through its irreverent humor and unconventional heroes and villains. While Shrek references and parodies popular culture, it ultimately conveys a moral message of not judging based on appearances that is reminiscent of classic fairy tales.