Well, I watched the Missing 411: The Hunted film, as suggested by Lordmongrove elsewhere. And I have to say, if i was marking Mr Paulides' homework, I'd have to point out that although it was interesting, and I did enjoy it, he didn't exactly make a proper thread through the film.
It starts off talking about hunters that have disappeared in various parts of america - people who were seemingly experienced woodsmen and shouldn't have got caught out. Some of them couldn't be found, despite extensive searches. Then there were other people who weren't necessarily so experienced, and they disappeared also. I couldn't help thinking that the american wilderness is proper wilderness, where all sorts of accidents could happen (especially to 80+ year olds with one eye and bad hearing) but that's probably beside the point.
When people had been found (dead, unfortunately), and the cases were put down to weird behaviour following hypothermia, Mr Paulides wasn't having it at all. But unless he's an expert on hypothermia (which I'm guessing he's not... At the beginning he's keen to mention that he was in the police, to show what a logical upstanding sort of person he is - which has some traction, of course, in some respects, though maybe not this one).
Then we went into the forest to speak to some hunters who'd recorded Strange Creatures making some strange noises in the 1970s. And also to hear about other weird things they'd seen in the area, like unexplained lights. A sort of Bigfoot - UFO connection. Though not particularly in connection with any people going missing. Other than the fact that America has some big, popular natural parks, where people do indeed go missing.
And then finally we were in a small patch of woods with a woman who'd seen something weird and fuzzy like in the Predator film, and tried to take a photo of it (which didn't come out), and who experienced the Silence of the oz factor, and who forgot about her experience until her nephew mentioned a strange ball of light he and his marching bandmates had seen at the same time a little way down the road.
So these were all interesting things. Going from missing hunter (no particular explanation put forward) to very high weirdness. But there was literally zero to connect the initial disappearances mentioned with UFOs or bigfoots or indeed anything paranormal. Which was kind of a shame, because it rather smacked of someone desperately gathering stories of weirdness and wanting to pin them together to make some bigger sense of them. But although all the things were indeed rather weird in themselves, to try to glue them together sort of devalued the whole thing perhaps (or at least, would make a normal person, not a fortean fan) dismiss the whole lot and throw the baby out with the bathwater.
But thank you for the tip off. I will watch the older film too (the one actually mentioned in this thread).