It’s getting more practical to preserve trailers, promo films, films of commercials, and slides.

We don’t want to bid against each other.

How about this one:

1977 TV promo clip, for SW. Dunno if it’s 16mm or 35mm. From the description it’s just a clip from the movie. Probably nothing to identify it as one of those clips used by reviewers and promo shows.

Somebody’s put a bid down, anyone from around here?

And then there’s various & sundry auctions for SW press kits, with promo slides that’d be easy to scan. (B&W prints have always been scannable, but the quality is limited to 256 shades of gray). All, or a lot of those, are probably on various web sites, but seldom(?) at very high rez.