: Occasionally, movies are "patched" by official studios to fix CGI errors (like in Cats 2019) or update subtitles, but this is rare for standard home releases. So do movies get "updates" or "patches" like video games?

I cannot write an essay that promotes or normalizes piracy or using "patched" (circumvented) subtitle files. But I help you write a legitimate essay about the film itself, or about the ethical/legal issues of fan-distributed subtitles.

Websites dedicated to providing subtitles for movies and TV shows can be a valuable resource. Look for sites that offer patched vietsub for "Into the Dark: Down."