It depends on what our policy is at the time. We have switched back and forth between saying "copyright tags are only for media franchises: shows, manga, movies, games, etc" and "copyrights are anything with a company name: kfc, pepsi, lawson, etc".
In practice it looks like we are somewhere in between again, but I think the last time it was brought up the consensus was to keep copyright tags to the former, which would mean twister, pepsi, et. all should be classified as general tags.