Gary:
http://en.wikipedia.org/wiki/Eldred_v._Ashcroft
I didn't mean that Disney's works had fallen out of copyright and they got them recopyrighted. I don't know of a case where that's happened.
http://en.wikipedia.org/wiki/Eldred_v._Ashcroft
The Sonny Bono Copyright Term Extension Act (or CTEA) extended existing copyright terms by an additional 20 years from the terms set by the Copyright Act of 1976. The law affected both new and existing works (making it both a prospective extension as well as a retroactive one).
I didn't mean that Disney's works had fallen out of copyright and they got them recopyrighted. I don't know of a case where that's happened.