Free
Internet Archive, Moving Image Archive
https://archive.org/details/movies(opens in new window)
Internet Archive, Movies
https://archive.org/details/moviesandfilms(opens in new window)
PBS Video
https://video.pbs.org/(opens in new window)
British Pathe(opens in new window) released 85,000 films on YouTube in April, 2014
OpenCourseWare A/V courses
https://ocw.mit.edu/courses/audio-video-courses/(opens in new window)
Wikimedia Commons
https://commons.wikimedia.org/wiki/Commons:Free_media_resources/Video(opens in new window)
About.com has a page with links to free "Educational Movies" at
https://websearch.about.com/od/imagesearch/a/education_video.htm(opens in new window)
Wikipedia https://en.wikipedia.org/wiki/List_of_educational_video_websites(opens in new window)
Videolectures.net is a referatory from Slovenia VideoLectures.net(opens in new window)
BBC archives(opens in new window)
Commercial/Educational for fee
Artbeats Digital Film Library(opens in new window) Royalty-free digital stock footage. Sourced from motion-picture film with licensing that allows unlimited use for any purpose including broadcast.
Footage.net(opens in new window) Stock, archive, and news footage network. Search footage trade’s stock, archival and news footage databases all at once.
You are responsible for obeying copyright laws and any conditions stated on the sites that you access.