"Films are always pretentious. There's nothing more pretentious than a filmmaker"

John Milius is making a declaration about the film industry and its propensity to be pretentious. He believes that filmmakers are the most pompous of all, as they are the ones who develop the films. He is indicating that filmmakers typically take themselves too seriously and develop films that are overly dramatic and self-important. He is also suggesting that movies are often made with the intention of impressing or manipulating the audience, rather than just telling a story. This quote is a reminder to filmmakers to remain simple and to keep in mind that their movies ought to be amusing and significant, instead of pompous and self-indulgent. It is likewise a suggestion to audiences to be familiar with the potential for pretentiousness in films and to be important of what they view.