Get this though- the studios are aggressively finding and taking down independent sites in order to monetize these old films. Their greed knows no bounds anymore. 2 years ago I couldn't find Felix the cat hardly anywhere. Now? Can watch it on Yuktube for $4.99.
Found a site a few years ago with a whole host of hard to find animated films dating back to the 60's from all over the world. Now I don't know what it was and didn't save the link. But I did find this today!- https://archive.org/details/feature_films
I'll definitely donate, lol.