Query4All.com
Free video archive
Data generated from past analysis.
https://archive.org/details/stock_footage
https://www.pexels.com/search/videos/archive/
https://archive.org/details/opensource_movies
https://www.videezy.com/free-video/archive
https://archive.org/details/movies
https://nofilmschool.com/public-domain-footage
https://guides.libraries.psu.edu/filmarchives
https://freestockfootagearchive.com/
https://archive.org/details/35mmstockfootage
https://www.criticalpast.com/