There is a four part documentary (40ish minutes in total) by Kirby Ferguson called &quot;Everything is Remix.&quot; [0] It discusses patents in addition to copyright as well.<p>It highlights in numerous ways why public domain is essential for creative process. But it boils down to this: there is nothing new under the sun and the spirit of the copyright law is &quot;to promote the progress of science and useful arts,&quot; as written in the constitution. The current abuse of copyright law causes the exact opposite.<p>[0] <a href="https:&#x2F;&#x2F;vimeo.com&#x2F;14912890" rel="nofollow">https:&#x2F;&#x2F;vimeo.com&#x2F;14912890</a>