I created a free template that gets as close as it can to standard screenplay format in Google Docs. Handy for sketches, screenplays, etc. Details on how to use it are included right in the template.
Access the Template
Click this link to create a copy of the template in Google Docs.
Using the Template
The basic details on how to use the template are included at the top of the first non-cover page in red. You can delete these instructions when you are done.
Scene Heading = Title
Action lines = Subtitle
Character = Heading 1 (Ctrl-Alt-1 or Cmd-Option-1)
Dialog = Heading 2 (Ctrl-Alt-2 or Cmd-Option-2)
Actor Parentheticals = Heading 3 (Ctrl-Alt-3 or Cmd-Option-3)
Transition (Film Editing) = Subtitle, manually align right
ALL CAPS must be done manually as Google Docs doesn't support it yet. There is an UPPERCASE option in Format - Text but it only applies to the current selection. It won't be saved as part of a style.