Storing a digital copy of a movie you own (like a backup of your Superbad DVD) is generally considered acceptable for personal use. Problems arise when files are shared:
Searching for is a nostalgia trip for desperate fans, but it is a frustrating game of whack-a-mole. You will sift through 20 dead links, risk three malware warnings, and possibly waste an hour of your time, only to find a copy of the movie that looks like it was recorded on a flip phone in 2007. superbad google drive