Well positively surprising, even for a Warcraft fan

Rating: 8/10 (10 June 2016)

I think it was awesome. The action was great, and it really kept me hanging on edge of my seat. Even though the story differed somewhat from the games, it was well executed and fitted the movie to make it good.
Though, in the other hand the cons of the movie were also the story. At the beginning of the film, the story started out good, but last fourth of the movie was story-wise ruined, in my opinion. It didn't, however, ruin the movie, but knowing the story of the game, it was disappointment. So 80% movie was absolutely great and awesome, but the last 20% story-wise was a huge let down: if you don't know the story of the games, don't read it. Or else the end will be ruined.
Overall, apart from the story and ending was just spectacular. The orcs were done amazingly and the movie was just beautiful to watch. The action was breath-taking and keeps excited to the very ending of the movie, though the last battle could have been a little notch closer to a bit more epic, but was still great.
TL;DR: It is a must-see in my opinion, a best fantasy action since LotR, and does a good job competing with that. You will love it, if you're a Warcraft fan (apart from few story changes), if you're not, you will love it even more.