He said that "Palm Springs Walk of Stars" is a copyrighted name. I think you can copyright the name, why not? NIKE is also copyrighted, right?
Copyright is assigned to an original work which has been fixed in tangible form, such a painting, music, sculpture and yes photo. Note that I said Original work.
You cannot copyright a name or a title according to US Copyright law, and international treaties and conventions swing this way too. You could however, Trademark a Title or Name.
Nike is a trademark, not a copyright. It's important to understand the differences.