Psychoanalysis like a narative tool

We see the film like a reality because our perception of the film is like a reality around us. Movie as a dream and like a dream has unique tools how describe our soul and unconscious processes. This advantage is a crucial for my research, how can be useful for understanding how our unconscious works. C. G. Jung and Joseph Campbell and his work helps me with looking for the answer. How can film speak to us through the psychological layer instead of the narrative layer