The intellectual and moral justification for copyright, in the United States, is utilitarian. A person does not have a sacred right to an idea because she invented it.
This is the fairly common aproach in countries based off English common law.
The alturnative aproach is the Napoleonic one where "moral rights" are a lot lot stronger. While the exact rules vary from legal system to legal system the results are ah interesting:
Under french law moral rights last forever. Sequals can be viewed as a violation of moral rights. Recently someone tried to make that argument against a sequal to Les Misérables. They won the case but fortunely the court was sane enough to limit damages to 1 euro.
There would also be issues with colouriseing a black and white film.
the problem is the "right to the respect of the work " and "right to
protection of honour and reputation" (I tend to feel that anyone who wants to inforce the sencond one should be prepared to defend their position on the field of honour).
Aditionaly things such as the GPL may not be legal in such juristictions.
Oh, oh, oh, I have a question for the lawyers out there.
Not a lawyer but:
I have purchased manuscripts where the author claims he retains "broadcast rights" (or something like that) on the effect. Is that ******** or what?
Depends what you mean by "purchased manuscripts" technicaly that could mean buying the bits of paper the work in writen on in which case you will have no rights other to own those bits of paper or sell them on. Copyright is not tied to a physical object.
I think Blaine bought the sealed soda can trick for a couple years of exclusive broadcast, but that still got ripped off by Magic Makers if I remember correctly.
Unless Magic Makers had signed a deal not to "rip it off" then unlikely to be any legal issues. If they had then the trade secrect stuff kicks in.
And what about the 12 year-olds who post their videos on YouTube, whose motto is "Broadcast Yourself"?
Depends on the contents of the video. If you mean the standard video blog then the copyright is held by the 12 year old. Youtube may or may not have the rights to:
to use, reproduce, distribute, prepare derivative works of, display, and perform the User Submissions in connection with the YouTube Website and YouTube's (and its successors' and affiliates') business, including without limitation for promoting and redistributing part or all of the YouTube Website (and derivative works thereof) in any media formats and through any media channels.
The complication is that the 12 year old is a minor. Another uplshot of this is that it isn't prosible to use material released under the commons free licenses in youtube videos.
Minors are in a rather weak position with regards to their copyright. They can't file DMCA notices.