I don't see why this is flagged. Is there some kind of convention that in the context of movies "k" must only be used in terms of resolution - but only if it's

I don't see why this is flagged. Is there some kind of convention that in the context of movies "k" must only be used in terms of resolution - but only if it's a well-know resolution? So "5k" movies will be ok to refer to 5000 movies but not "4k" or "8k" movies? In fact the list contains many interesting movies, for instance Tarkovsky movies such as Solaris, The Mirror and Stalker. Or a film by Peter Greenaway about Darwin. I am skeptical about the licensing, though, because many movies are probably not free. Also some on Youtube are "not available" (to me?). For instance "Fargo" is most likely not free.