The phrase "Index of Parent Directory Movies" is one of the most famous "secret" search strings on the internet. For decades, it has been the go-to technique for movie buffs looking to bypass flashy streaming interfaces and cluttered ad-filled sites to find raw file directories hosted on open servers.
Searching for an "index of / parent directory" alongside a movie title is a popular "Google dorking" technique used to find open directories
If you are a web server administrator and you accidentally find your movies exposed via Google, here is how to close the door:
The Mysterious "Index of Parent Directory Movies": Uncovering the Hidden World of Free Movie Streaming
Many former "index of" users have moved to Plex (personal media server software). They legally purchase Blu-rays, rip them using MakeMKV, and host their own private "Index of /movies" for their household.