Researchers in the Arctic find a prehistoric man frozen solid in the ice. I do not see there any misunderstanding on the part of the script writer. Like Harpo, the chimpanzee can hear, but cannot speak. I should have known better re your suggestion. I also would love to have a copy of the Dr Syntax Poster.
Someone can get rich out there.
I had no idea anyone knew of it and happened to mention it and got a standing ovation from the usual bored, noisy group of 500 students. It seems they keep showing it. This of course has no relation to any of the linguistic novels. The whole experience was very funny. In addition to poor linguistics, it's not a very good novel.