For historical or older content (such as items tagged "71" for 1971), websites like the Internet Archive (archive.org) offer legal, virus-free open directories of public domain MP4 videos.
: Files in open directories are unvetted; always run a virus scan on any file you download.
Tubi or Pluto TV offer free content, though it may not always be available in high-definition download formats.
A curated look at high-quality historical films. To help you get exactly what you need, tell me: