"The word "documentary" should be used very loosely here..."
They say all of their source material is independently verified and they do provide sources on their website. At this point, as far as I am concerned, it is all an interesting theory, as I haven't had the time to verify any of their sources. I would like to corroborate or dispute their conclusions with sourced material in this thread if anyone else would like to.
That being said, I wouldn't be surprised if governments and corporations kept both the evidence of contact and the free energy technology under wraps. I think this premise is sound.
Regarding another of their premises, however, I am not convinced that the upper-most echelons of power are malevolent, but, rather, I tend to think they are misguided and inept. For instance, they could very well not have released the free energy technology due to what they see would be unavoidable havoc wrought on humanity by what would surely be a transformation of our civilization. I would tend to think that an advanced, space-faring civilization would feel obliged to share the tech with us and work with us to transform our society as quickly as possible considering how we are wiping out so many species of lifeforms on our planet who would otherwise evolve into sentient lifeforms themselves. It would be seen as a horrendous crime against life by advanced civilizations not to help us.