OPENING AND ENDINGThe first element on the first page is a repeat of the title. This is in case the cover is torn off. The first page does not have a page number because of this. The title may be all capitals and underlined and centered but should be no larger than the standard 12 point Courier of the rest of the screenplay.
Then you have two blank single lines and the words "FADE IN:" on the third line below the title. "FADE IN:" always starts the script and "FADE OUT:" always ends the script (unless you prefer "THE END" or both). The script never considers credits at the start or end of the film. This is not the concern of the scriptwriter. The writer might have thought up a sequence that could contain credits and may introduce the story in a way that the credits will be unobtrusive.
There may be times in the script where the writer might want to show a break in the story to indicate a passage of time and might use "FADE IN" and "FADE OUT" again and this will be discussed in Scene Breaks.
Oh, yeah! Many screenwriters have dropped the use of "FADE IN" and "FADE OUT" at the beginning and end of the screenplay. There's another rule you can break if you feel like it. I'm inclined to keep them, especially the ending "FADE OUT" which, in a screenplay with an unusual ending, it relieves the reader from wondering if there aren't missing pages.