Rules of Writing a Film Script

After a quick read of an example script, here's a few rules embedded within the story:

• Publish a master header at the beginning of the script
• Names should be in captials when a character is introduced for the first time. 
• Actions that are important to the narrative should be in capitals.
• Create a new paragraph suddenly when something new has happened and the shot has changed. 
• Names should be in captial letters every time a character speaks, 
• Dialogue is formatted in the center of the page.
• Action can interrupt dialogue with a paragraph.
• V.O. is used to indicated that a characters voice is over their thoughts. 
• O.S. indicated that a character is saying something off camera.
• After changing locations, describe the scene with a new header, which is indicated with a cut to indicate a transition.