The Cheezy One said:
The thing is, you are being very literal about the meaning of the film, but not about its content.
I'm not sure I understand what you mean by that.
I'm being somewhat literal when I interpret the meaning of the word "film", or rather "movie". A film is really just a sequence of frames, or more precisely a roll of film on which a sequence of frames is stored, but with today's digital technology it doesn't make much sense to be so literal.
Some film rolls don't hold stories with plots, but just "footage", e.g. of historical or made up events. Even if you cut them together into a documentary, and have a narrator tie all those bits together, there is no story being told in most cases (some documentaries cross over into movies, however).
The Cheezy One said:
It did have a plot. If it didn't, it would literally be the cast, standing in a location, doing nothing.
Well, not really. If you have a cast standing around, then there is a plot, even if it can be summarized in a short sentence. A few minutes of footage of, I don't know, a fish tank, that doesn't contain plot. There's no plan for things to happen in a specific manner in that.
Look, I'm aware that Cloverfield tries the mockumentary angle as an excuse to get rid of as much plot as possible, it's an artistic statement of sorts. I get that. I know that the lack of obvious plot is intentional, and that whatever else happens, however much it's stripped down, is still technically a plot of sorts.
The problem is that Cloverfield fails as a proper story because the plot is too thin, and it fails as a mockumentary because the camerawork and character's inexplicable behaviour constantly yank you out of your suspense of disbelief.
I'm sorry, but that just makes the whole thing a pointless exercise to me. It's a bit like making a competitive first person shooter and then making all weapons deal zero damage because you want your game to promote peaceful ideals. Nice idea, but it really doesn't work.