A spelunkin' good time! Ya, it's a pretty bad movie. But as far as really bad movies go, this one is great fun to watch!
Joan Crawford out-acts everyone else in the film to the point that she seems to be parodying herself, especially during the pseudo-philosophical scenes where she speculates about what makes us human. And Michael Gough is outstanding in his complex role as "the guy who wants Trog dead".
But Trog himself is the funniest part of the movie. Whether he's swaying to classical music, over-turning cars, walloping someone with his hairy forearms, or just dreaming about the good old days, Trog will have you in stitches. And if you don't find it funny, at least you'll be completely bewildered that someone actually made this movie.