A good playwright or screenwriter recognizes that he or she is not the sole creator of a script and welcomes the creative input of actors and technicians who will bring this carefully designed experience to life. Since the playwright or screenwriter is the designer rather than the builder of his art form, he or she must be careful not to specify too many details. The other creative artists involved in the project must have flexibility to create their part of the theatrical experience in a way that makes the most of their talents and abilities. A good writer provides only the key details which are essential to make a point. The rest should be left to the cameramen, set designers, make-up designers, actors, costumes designers, etc. who will be adapting the script to their particular stage, budget and creative style.
Actors come in all shapes and sizes.
The idea a character represents is all that is important. The events of the story should be carefully structured to build and release tension and to reveal truth. The writer should concentrate on what happens rather than how it happens. The words a character speaks is another major contribution of the script writer. Good dialogue must be articulate and interesting while remaining appropriate to the character and the forward movement of the action.