There is almost certainly an archive of cut content somewhere, even if "archive" is used in the loosest sense of the term. I direct theatre, and my directing books are stuffed with half formed ideas, abandoned concepts, and the pages of my scripts look like the ramblings of an insane man. I use them, sometimes, to teach theater history courses as a condensed archive: the students have to examine the process of the show from beginning to end based only on my book, journals, notes, pre-production design documents, and, eventually, photographic evidence of the show -- only at the end do I show them a finalized recording of the production. All of this counts as an archive. I can't tell you the number of times students have made crazy claims about my shows based on what is in the material I give them ... it's a good lesson in the danger of doing history, and of finding your own narrative in the archive, as much as you find the narrative of the archive itself.