Sounds like you theorize that motion picture photography then is something of a multiple of still photography, correct me if I'm wrong. Since there is so much more that goes into creating millions of sequential frames vs. just one frame where do you think you stop seeing just the one frame and start concentrating on the change in time.
I still remember the first time I saw a 35mm print of Apocalypse Now and thinking every one of these frames would make an awesome 8x10!