10 years from the date of publication, possible extensions while derivate works like sequels are still being produced up until the death of the author. No inher

10 years from the date of publication, possible extensions while derivate works like sequels are still being produced up until the death of the author. No inheritance. For corporation-owned copyright, same principle, but with an upper bound of 50 years. After expiry, the authors should retain a right to call a derivative work original/canonical, but enjoy no other protections - so I can make my own James Bond movies, but they won't have the "canonical" stamp. This right would last a long, but finite amout of time (max 150 years) and would be inherited (to somewhat equalise individuals to corporations, since nobody lives that long).