A lot of the jokes I felt were kind of predictable, like the end of the Speak With Dead scene, and the way the sense of humor was so modern it kind of took me out of the setting. I think you can do silly action-adventure and not have it kill the immersion (like Princess Bride or the blacksmith's shop fight in the first Pirates of the Caribbean). But there were a few times I did laugh, like when Michelle Rodriguez bit her lip at the halfling at the end. And I honestly thought the action was pretty subpar - a lot of the wire effects were pretty bad, and I don't really like CGI spectacles.

I give it 5/10, myself - I don't regret watching it, but I have no interest in watching it again, and kind of forgot it existed until this post reminded me of it.