Just as an example, images like this http://www.wallpapersxl.com/wallpaper/1366x768/lord-of-the-rings-nature-69103.html are all around the web. They all feature the lotr ring inscription, and backgrounds in different colors. They appear on many wallpaper sites, and are used on websites by many people. Is that legal?
I was unable to make out the original author, because everyone is using them and apparently no one cares about giving sources. Could I use images like this in my own projects?