Saw it tonight with 2 people that have no idea about lore or anything about the game, they enjoyed it as did I, the reviewers giving it low scores are on crack.
Story: Yeah it's a little muddled but it's also cut by 40 minutes due to execs and the studio (thanks f*ckers)
Acting: Serviceable, and yeah Orcs did a more convincing job overall.
Visuals: EYEGASM, a few scenes blurred by a bit quickly, but the look of Orcs and magic was damned amazing...Also seeing landmarks out of the game brought to life was a joy.
Music: I thought this was a high point, really enjoyed every bit.
Also, the few nods to WoW players was great...wont spoil them but they were great.