As a Warcraft fan, A DEFINITE MUST WATCH! As a non Warcraft gamer, you will still enjoy it nonetheless.

Rating: 10/10 (8 June 2016)

As a person who played vanilla World of Warcraft (WoW), I have to say this movie has definitely a lot of fan service! I loved it very much! Duncan Jones is an excellent director, and I am so glad he's the one chosen to direct it. The acting was great!!! Special attention to Toby Kebbell, who plays as Durotan! The CG and motion capture were marvellous! The fight scenes & sound effects were awesome!!!!!! My only concern about this movie was the pacing... :( I sincerely feel that it would have been a BETTER movie if it were stretched to at least 2.5hours or 3 hours.
Many scenes were done very swiftly and zoom, onto the next scene. The audience doesn't really get the chance to digest and fully appreciate each scene properly. Due to each scene being shot so quickly, I felt there wasn't enough character development for the characters in the movie.
The emotions weren't captured too well due to the pacing, which is surprising, given how good Duncan Jones is at playing the emotional card in his movies, Moon & Source Code.
I cry easily whenever I watch movies with any angst/tragedy. However, I did not shed a single tear even at moments, which are supposedly moving/touching in this movie. :( This also means... I wasn't engaged emotionally or felt connected with the characters. Not Duncan Jones' fault, but I guess it is hard to squeeze such awesome content into 2hours worth of movie (again, it should be a 3hr movie!) Next, as a non-Warcraft gamer, you may not understand certain terms or the backstory of certain characters. To WoW gamers, we already know the significance of Durotan & Frostwolf clan, Medivh, Khadgar & Lothar etc. However, even if you're a non-Warcraft gamer, perhaps you would still be able to appreciate the cool CG and stuff. But, as for the story plot, you may not be able to follow at times due to your lack of knowledge of Warcraft lore.
I also feel that there isn't a need for the "romance" theme between Lothar & Garona. It felt pretty forced. Orgrim Doomhammer is from Blackrocks while Durotan is from Frostwolf. Again, no time to show origins of Orgrim, so the non-gamers would probably assume that Orgrim is from Frostwolf (based on this movie). Also, the ending of Durotan was different from the lore =x
However, due to being a Warcraft fan since its early days, this movie will gain a 10/10 from me on IMDb. But personally to me, it's about a 7 or 8.
The movie did show Grommash Hellscream, but then again, the focus isn't on him this movie. No mention of Sargeras in this movie either. Therefore, I look forward to a sequel~ if any~ =D Why? Because it's w-a-r-c-r-a-f-t! THRALL! FOR THE HORDE! Our favourite game on the big screen!!! and it is not a flop! It's good, not very good, but good enough.
Warcraft lore, there's SO MUCH to tap upon... so much potential!