The term is a common search operator used to find open web directories, often for downloading files.
Below it, a note:
If you are searching for Brave movie news because you heard about a "new" project, here is the current status: index of brave movie new
Google and other search engines index billions of URLs every day. Despite automated filters, some open directories slip through. Searching may return results that look promising, but you will likely see: The term is a common search operator used