Quote:
Originally Posted by Kevin8or
If a movie studio can't make a healthy profit from its film after 20 years, another 30 won't be much help. The film was dud. I still say 20 years is a good length. Authors, films, music, everything. Two decades is a powerful incentive.
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Don't forget that copyright covers not only the actual work, but also "derivative works" - ie sequels. A successful film "franchise" ("Star Wars" would be a good example) can be around for significantly longer than 20 years.