Song of the South has been unavailable in the US for at least 15 years even from Canada where it exists but not allowed by U.S. customs, a clear case of national unconstitutional censorship; I tried several times...
Finally brought a copy back with me after a trip to Canada.
Used to know a source of a Freeper who used to give away free copies.
I guess I better get my copy of Blazing Saddles, while I can.
Seems like you can find it here pretty easily online: