This is a modest-budget swords-and-sorcery fantasy based on Dungeons and Dragons... and for what it is, it is pretty good.
Don't expect Oscar winning performances, but most of the acting is acceptable and some is actually pretty good; the fellow playing the Vermin Lord does a very good job of quietly understated evil.
The effects and creatures are comparable to D&D:WOTDG (the second movie), but it moves faster and there is more action, and more variety in spell use with better imagery, and better fight scenes.
Gladly lacking the first D&D movie's lame humor and misplaced modern sensibilities about egalitarianism, and the slow-paced and stilted wordiness and failed melodrama of the second, this one is a bit more stark and grim than the others, with more actual fighting.
It is also more in line with actual D&D material, 3.5e I believe though the version I am more familiar with was new 30 years ago. :) D&D fans will enjoy it, Swords&Sorcery fans will like it, appreciating it for what it is. If you're looking for deep dialog with Johnny Depp and Julia Roberts, though, perhaps you should look elsewhere.
As for me, I was indeed entertained.
