Napoleon, by Abel Gance (1927)
5+ hours. Monochrome. Silent. French. One of the greatest films ever made?
Currently available on BFI Player, for which you can get a free 14 day trial.
Wikipedia Entry:
https://en.wikipedia.org/wiki/Napoléon_(1927_film)
BFI Player Link to Watch the Film:
https://player.bfi.org.uk/subscripti...-1-1927-online
Mark Kermode Introduces the Film:
https://www.youtube.com/watch?v=j1bW8y0ZioM
Poster: