The Hobbit and Lord of the Rings enters the public domain in New Zealand, Egypt, and a couple other countries. Would have entered into the public domain in Canada had the government not signed a last-minute 20 year copyright extension act last year.
Retroactive copyright extensions are changing the deal after it has been made, for the benefit of copyright holders and to the detriment of the public. This is unethical. That's why I get angry when copyright holders try to make ethical arguments against piracy.
It is kind of amazing how IP holders could pull this off. One of the foundations of law that you cannot make retroactive changes.