Google Docs doesn't have native scriptwriting formatting, but you can install the "Screenplay Formatter" add-on or simply use a monospace font (like Courier New) and manual tabs. Better yet, use the new "Building Blocks" (Insert > Building blocks) for custom templates for character profiles or planet descriptions.
Google Docs technically supports up to 1.02 million characters (about 500 pages of text). However, add too many images, comments, or suggested edits, and performance will slow to a crawl (the "black hole" effect). Here is how to keep your starship fast: interstellar google docs
An interstellar document is a target. Whether it's a leaked movie script or confidential business data, you need to fortify your Drive. add too many images