Generally, you have to contact the owner of the copyright to use copyrighted materials. However, if you've already purchased the copyrighted materials (like a book or a movie) and are reselling them (e.g., to a used book store), then you don't have to get permission and you aren't infringing on the user's copyright.
Only if the copyright is not part of the copyright registration that is copyrighted in the publication of the author's registration. But If the copyright is part of the copyright registration that is copyrighted in the publication then the copyrighted author of which publicized the copyrighted registration is not copyrighted in the legalized sense of which a publication is copyrighted. Yes, a work is always copyrighted, before and after editing and both versions.
First, downloading copyrighted works is illegal. 2nd, the torrent protocol splits files into many pieces. These pieces are not sequential. If you play a movie that is half downloaded, at best the movie will jump forward at random intervals. It may also be unintelligible. 3rd, movie companies and individuals will sometimes offer a movie that in reality is not that movie. 4th, did I mention that downloading copyrighted works is illegal?