Movies as psychotherapy?

This is one of many movies that were 'prescribed' to me by my shrink who believed in their effectiveness in therapy. At first I could not understand the connection between a film and a psychological problem. But then it became clear that both are about a 'fantasy'. Almost everyone in society is living a fantasy that can be as far removed or as close to reality as the person wishes. Of course, if the that person is a head of state dragging his country into war or running after Utopian dreams then the harm done is that much more greater.

Now a film is also a fantasy, but it is the very exact and deliberate fantasy of the director. When we see a movie we are transported into that fantasy and we live it in vivid detail and color in all our visual and mental senses. We also live it in our subconscious senses as well, and herein lies its value. Seeing what has been thus far deeply embedded and intertwined inside us now on screen and out in the open helps begin the separation process (between reality and fantasy). Since the distinction between the fantasy of the movie and your current reality is very clear, and since you willingly entered the movie fantasy by your own choice until it overlapped with your inner similar fantasy; you can get to experience the willful ‘exiting’ of the movie fantasy that would subsequently help you to ‘exit’ your inner fantasy in the future. Well, it’s a little more complicated than that, but this isn’t the best place to discuss in deep psychotherapy techniques.

Of course I’m not suggesting that, in and of its self, a movie would cure anybody of anything; that has to be the work of a professional, and it’s his or her decision as to whether or not to incorporate it into the therapy process. But I am curious as to whether anyone else has ever ‘used’ this film (or any other movie) in this sense or at least experienced their psychological effect either consciously or subconsciously.