"Now if you mean something that can't be currently done for reasonable money I'd agree. "
Well geeeeee....isn't that the point? How about practicality? Making something that's cost effective AND can be worked easily into a display setting? You know, I've thought about this for 15 years and have pretty much gone through all of the equipment/display scenarios while watching technology develop.
To start, - no, it's not "just a movie" it's actually time lapse photography.
You could have done that with video using a time lapse deck - but, they have all types of problems in the transport mechanism that generate time-base errors in the final video - and they were very, very, expensive. I looked into that in 1987. The final problem would be how would you do the display? Hook up a tape recorder to a CRT - where would you put it etc.? Not a practical display method for this type of technology. You would have the same problems today with digital video recorders because you would need to start/stop the tape unless you used a hard-drive based unit which is NOT easily field portable. Also, the camera units based on digital record media do not provide intervalometer timing capability.
Yes, you could have done it with a motion picture camera and an intervalometer or a 35mm camera and an intervalometer - but, the display of the final images would be an audio visual display with all of it's attendent problems. Noise, heat, space required, etc. I did A/V work for the US National Park Service in 1982 at the Bosque del Apache National Wildlife Refuge, for the National Science Foundation at the Very Large Array, and at other places so I am really well aware of what an AV front screen or rear screen system takes to display slides. That's not something you can put into everyone's home. Not to mention the cost / maintenance issues.
And yes, today you could do it with a film camera, digitize the film and make the final display like you would with a digital camera - but, what's the point if you can do it directly with a digital camera? The need to say, "uuuhhh...I shot it on film" - just to comfort yourself that you haven't sold your soul to the digital devil?
I want something that looks like a framed color photo - but, every time you look at it, the photo has subtley changed. That's WHY I never used any of the technologies I described (video, motion picture, still photography) specifically because the final display was not technically or aesthetically viable or pleasing.
The digital picture frame is an integrated display device that can be framed like a standard picture (your choice of any picture frame), and integrates the digital reader (unseen) into the device as a single unit. This gives the aesthetics of a framed color photo that can be easily hung on any wall. The digital camera gives a direct digital method of capturing the images to use in the display device.
And, the fact that it's all digital has it's own aesthetics that are quite apart from analog processes. I'll let you know how it works out.