this is (part of) what prevents Universal Studios from putting out their own Spider Man movie.
It's not though. It's the trademark that prevents that. Copyright only prevents them from making a Spiderman movie based on a story that's already been written. Nothing prevents them from writing a new story about a guy that shoots sticky goo from his wrists, and making a movie out of that.
I guess that story wouldn't be considered canon. But canon also has nothing to do with copyright.
It's not though. It's the trademark that prevents that. Copyright only prevents them from making a Spiderman movie based on a story that's already been written. Nothing prevents them from writing a new story about a guy that shoots sticky goo from his wrists, and making a movie out of that.
I guess that story wouldn't be considered canon. But canon also has nothing to do with copyright.