I agree the current copyrights are stifling innovation, and largely leveraging branding. Marvel, Star Wars, Star Trek to name a few. These things haven't died

I agree the current copyrights are stifling innovation, and largely leveraging branding. Marvel, Star Wars, Star Trek to name a few. These things haven't died out because they have people invested in their brand and storyline. But they also haven't done anything super cool because they don't want to take the risk they might damage their brand. They try to make"reliable blockbusters".