Start with a clear premise
Define the main character
Establish the goal
Create conflict and obstacles
Outline the beginning, middle, and end
Write a scene-by-scene structure
Format the screenplay correctly
Use action lines for visible behavior
Write dialogue that sounds natural
Keep dialogue concise and purposeful
Show, do not tell
Make each scene advance the story
Build tension and stakes
Revise for clarity and pacing
Read the script aloud
Get feedback and revise again