I haven't been a disney fan for a while, because their lobbyists are arguably the primary reason copyright terms have been extended to such absurd lengths: they want complete control of the mouse.

Steamboat Willie was created in 1928. It won't enter public domain until 2024 (assuming Disney isn't successful in extending copyright yet again...)

Disney raided the public domain to build it's animated films empire, then pulled up the drawbridge to the magic kingdom behind themselves.