Alot of information was so forced which made the story sounded like a fake one.
For example suggesting that humans were animals and due to eating mushrooms their brain may have evolved - WoW!
Also the story of someone who had disorder at a young age and kept looking at ground so he fall in love with mushrooms.. hmmm so overly used story as well. And alot other examples in the movie.
Too many 3D graphics and stories around people and less about the fungi or mushrooms diversity.
Nature is intelligent... Hmm who is nature? Who created it? Who is managing its laws and balance? - Saying nature is intelligent sounds less intelligent actually, just give it one more thought :)