There’s an interesting 16mm film up on eBay right now:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=250398159084
Advertised as from the late 70s, Star Wars advertisement promoting vaccination for kids.
If it hasn’t been preserved before, I’m willing to do it. Thus, if we want it, it would also make sense to coordinate, rather than bid against one another.