Who knew that there was a whole website out there with HUNDREDS OF FREE DOCUMENTARIES?!
Top Documentary Films
It has films on basically everything. It was actually really hard to choose, even just a category. But I went with the environment because it is such a large concern these days. And then just choose a random one: Planet Ocean.
It had beautiful imagery and some great information.
Sometimes it felt a little off topic, but they pulled it all together pretty well in the end.