I Googled so you don't have to. Here are links to some (very few, really) of the best films about Africa. Most were released in the last 20 years, but some are a good deal older.
IMDb: 100 of The Best Films on Africa
https://www.theguardian.com › Arts › Movies › Africa Express
10 Films from Africa That will Change the Way You Think about Poverty ...
10 Must-see African Movies of the 21st Century
20 Essential African Films You Need To Watch
www.tasteofcinema.com › Lists › Film Lists
Movies and Documentaries About Africa
10 Best Movies About Africa | Made Man
www.mademan.com › Entertainment › Movies & TV › Movies