Extended ending?
I saw this movie on TV a couple of years after its original broadcast in '73, and my mother (who watched it with me) told me that when she'd seen it the first time there had been more to the ending. She said that the first airing showed another scene where the husband had developed the film and was looking at the pictures she'd taken (from the final encounter, where she was snapping pics so the flash would scare the creatures).
Does anyone else remember seeing this? It wasn't like my mother to mis-remember things, but I just can't find anything to verify the existence of the ending she remembered seeing.