Re: Terminator - Sarah's polaroid -- not a Polaroid at all!
indeed - it was a Kodak Instant camera and no Polaroid :lol
Correct -- it's a Kodamatic 940 instant camera, introduced in 1983. Interesting camera, in that it's one of the late models of Kodak's instant cameras that ran in competition with Polaroid until the landmark 1986 court decision that shut down Kodak's instant camera business completely.
The Kodamatic 940 was built to use HS144 instant film. This film produced rectangular prints with squarish white borders, rounded corners, and an extended border at the bottom (where the reagent was stored before development), as seen here:
That's what we see coming up out of the boy's camera.
Of interest is that because Kodak instant film developed from the back (rather than from the front as with Poloraid film), Kodak was able to coat the front with a fingerprint-resistant matte "Satinluxe" finish, in contrast to the gloss of a Polaroid. It also means that the face of the prints have no separation between picture and border; it's all one continuous surface.
These HS144 prints are plasticy, and fairly rigid; not the sort of thing you'd fold and tuck into a pocket.
In 1983, Kodak introduced Trimprint 144 film; this was much like HS144 film, except you could peel off the sharp-cornered 4"x3" print from the rest of the frame, giving you a more-or-less conventional print that could be trimmed with scissors, placed in standard photo albums, etc. (Incidentally, the Kodamatic 940 was renamed as the Trimprint 940 in 1984 to help sell the new Trimprint film.)
Here's what a peeled Trimprint looks like:
This is the same as the picture that Sarah holds in the Jeep (and that Reese is seen with in his bunker flashback), and so it's clear that the Kodamatic in the movie had Trimprint film in it.
Reese says that John Connor gave him a picture of Sarah -- "It was very old, torn, faded." It's not easy to tear a Trimprint -- they're made of layers of plastic, and tend to bend rather than fold, melt rather than burn -- and they don't fade much over time, though the colors drift a bit. Ignoring that, here's my version of a very old, torn, faded picture that's been carried by a soldier for decades through a post-apocalyptic battlefield: