After a look at some strange creatures, the narrator and camera take us to the Chaco forest, on the borders of Paraguay.
I entered this film expecting something to do with vampires, and that is not really what I received. It does have clips from Murnau's "Nosferatu" and uses this to segue to the vampire bat. Painleve sees a parallel between the parasitic vampire and the world of bats.
This film does have some great early animal footage. Not sure how many animal films were around in the 1940s, but certainly not many, and any documentation of animal life is welcome. I almost feel bad for the guinea pig that was being used as a guinea pig.
Not sure how this film was avant garde. Really, it was mostly just an informative film, something you might show as a filmstrip to a classroom.