5,5/10

There is a basic plot description in the beginning but it is not always clear which character is which and what they are specifically doing. I read the Wikipedia Plot description afterwards and it makes it more understandable. The Dialogue is vague, often times outside the frame, since other people are constantly putting their face or other objects infront of the camera. Also some voices are clearly edited in, during post production. Hard to be a god gets repetitive after a while because the scenery stays the same and the bizarre shit goes on for 3 hours.
I haven't seen anyone mention the horrible photoshopped face on the corpse at the end of the film, looks like a budget thing.
With all that being said, the detailed visuals alone make it worth to watch.
It is one of the most unique films I've seen. There isn't a film filthier than this