How we remember a movie

In reply to this post on IMDb

I've never seen the original Jurassic Park film at the cinema, so I think I finally saw it on tv once. But then seeing that film turned out to be such a non-event, that I probably forgot that I ever saw it whole, and so mostly remember getting to see it in parts in my old home. It's as if seeing the original did not make any impression on me. Except "It's a UNIX system! I know this!".

I kinda think that this may be related to how one watches films, and whether it's alone or with someone, and then also where and in which setting. When I see a particular film or documentary at home, then I take the time to watch it, and invest the necessary mental resources to think along.

Another interesting point is whether I've consumed any similar [visual] content on the same day: Of the two movies I might have seen in a day, which one of these will I remember seeing? Will I remember one or the other, or the one I saw later?