Hope this clears that up.

Well....

Step One: Have a story that you’d like to tell.

Step Two: Come to the conclusion that you’d like it to be written in screenplay format.

Step Three: Get a book on screenplay format. 

Step Four: Read book on screenplay format.

Step Five: Get confused and re-read the book on screenplay format.

Step Six: Abandon all hope, and give up on the project.

Step Seven: Torment yourself with the idea that you didn’t even try.

Step Eight: Write the script.

Step Nine: Edit the Script.

Step Ten: Rewrite the script.

Step Eleven: Reconsider your life choices, examining them closely, pondering how it is that you came to this exact spot in your life.

Step Twelve: Workshop your script. Have your friends read each of the parts. Make notes on what works. Repeat Steps Nine through Eleven as needed.

Step Thirteen: Declare that the script is finished and there’s nothing else for you to do.

Step Fourteen: Come to the soul crushing realization that unless your script is produced no one will ever read it, that even if you sell your script it will have to go through re-writes often by someone else, and that a script is never a finished production. 

Step Fifteen: Drink.  Repeat Steps One through Fourteen as needed.