This is a great article on not only our responsibility to use our craft to make and actual change, but also the practicality of how to do it. Making films should never be about making the film for credit or self advancement. Rather making the film to enlighten, teach, or  encourage other people. This is what separates us from most of secular media. Indeed, we should never work in any way for our own glory but solely for the glory of God. He is the one that gives us the gifts we use to preform any work; and the goal of any work should be to allow Him to work in our hearts and the hearts of others.