You can find old film reels from random places. I used to work at a film post house where people would bring us film they purchased without really knowing what

You can find old film reels from random places. I used to work at a film post house where people would bring us film they purchased without really knowing what it was. One person scored several features from an old broadcaster from when they would actually broadcast straight from the telecine. Some of these might be in the public domain now, but most were not. A lot of them reeked of vinegar and beyond saving.