Two years ago, I reviewed the werewolf movie, Bad Moon. It was based on a book called Thor, which was told entirely from the dog's perspective. I made mention of that in the review, and here's what I said... "I know you can't do a movie through the eyes of the dog, but I find that premise a lot more interesting than the straightforward story we ended up with."
I always admit when I'm wrong, so let me say this: I was dead wrong! And Good Boy is all the proof I need.