To dream that you are watching a film signifies that you are analyzing yourself and your own thoughts from an objective view.

Alternatively, it represents old memories and the past. Perhaps there is something that you can learn from in the past.

To dream that you are developing or exposing film refers to a developing relationship or situation.

Alternatively, it signifies the completion of a project or task. You are ready to enjoy and reap the benefits of your work.

Consider the image that is being developed. If the image on the film does not come out, then it means that you are not ready for the outcome of a situation.