Hundreds of people participated in the production of that film. Maybe thousands. Because it's a film. It takes a big social collective effort.
I would say that if you have a society that produces a feature length film whose basic premise is deeply eugenic and could plausibly be mistaken for intentionally-produced pro-eugenics propaganda, that you have a society deeply steeped in eugenics as a concept, maybe even moreso than one which would intentionally produce such a film as propaganda.
As someone else said: the purpose of the thing is to do what it does.