Nice effects though.

Highly Overrated But Still Good

It’s sentimental, ridiculously long and only occasionally funny

Blistering performances.

The last word in the title is gross and describes some parts of this documentary. But most of it has and shows information you probably didn't know - like how they survive and why their very existence is so important to us. (you might find that pretty surprising at the end) It's a nice break for a change from the science fiction, horror and love stories we usually watch.