Viewing a movie in a dream suggests that you are watching an already understood situation. It has been organized and edited; listen to its message.
Viewing a movie in which you have a part may have a meaning similar to that of the double or twins, and may signal that significant material is emerging or ready to emerge from the unconscious. It may represent memories of images or scenes from your past.
Are you watching life pass by, or living vicariously through others actions? Perhaps the feelings or actions expressed in the movie are distant and removed from you, suggesting that you are protecting yourself from experiencing them.
If you are participating in the making of a movie, its story may be dealing with an archetypal theme and offer a message as to where you are in relation to it. Whatever your role, consider all the characters in the movie as personifications of various aspects of yourself.