The D&D movie was [i]fine[/i]. Had a decent atmosphere. It wasn't boring. (Had plenty of action set pieces.) And it wasn't the insufferable modern Marvel-esque comedy that I expected it to be. (Hell, some of the banter was actually amusing, and felt like it belonged in a D&D campaign.)

But it [b]was[/b] very predictable, and it had a few too many Hollywood tropes in its script. (Including a few plot gaps, that a 2nd draft could've probably fixed.) With cartoon villains that aren't intimidating in the least. Though it's the kind of accessible (in that it lacks any clever/memorable writing) that general audiences will still give glowing praise to. 

6/10? (Will forget almost everything in a week or so.)

And if you happen to be a big D&D nerd (or have played it at least once in your life). You'll probably notice that it broke the rules several times. (Like how 'Sending Stones' don't work that way. Etc. etc. This was not written by nerds.)