Yeah, it's got a lot of dumb moments. But it's more entertaining than the last film, and it kind of makes for an okay D&D movie. If my usual players hadn't seen that film, I'd rip stuff off from it.
I actually like the 2011 Conan film. I was disappointed with it at first, mainly because I was hoping for the Conan movie to end all Conan movies--a masterpiece, or at least something as good as the Lord of the Rings movies. What I got was a summer popcorn action film. It was good. I liked it, and it's grown on me a bit. I think it is better than its contemporaries, like the remake of Clash of the Titans.
As far as the three films...
I love the original 1982 Conan The Barbarian. I think it stands the test of time. I like it more now than I did when it came out.
I like the 2011 Conan The Barbarian remake as I just described. It's OK. Was hoping for better. But, I don't hate it.
Conan The Destroyer, the Arnold sequel, has some moments that just kill it. It opens with Conan praying. Conan doesn't pray. Well, yeah, he did in the 1982 film, but he also said, "To hell with you!" if Crom is not with them for the battle. The barbarian surely doesn't pray like he did in Destroyer.
The mirror thing, with Thoth Amon, was not interesting or exciting, and the ape creature just looked so fake. It tore you out of the movie.
Malak is likeable and sometimes funny, but they needed to tone him down. He was too stupid in parts.
Conan discovers that the Palace Guard is chasing them, and in the very next scene, Conan gets drunk when they camp. Yeah, that's not Conan.
And, the Dagoth (or is it Dagon?) creature at the end, again, looked very unconvincing. It did have that Lovecraftian vibe to it, which is good. But, it was so silly looking and fake.
On the other hand, many of the set were pretty cool. The city and palace looked great. The outdoor locations were picked well. Grace Jones' portrayal of Zula was well done (though Wilt was Stilted, and the young girl very naïve--which, I guess, was the point). I really liked the set of the shrine where they found the horn. It had a good Conan feel as in many of the stories where Conan explores long, lost places. And, the Wizard battle was kinda neat.
For some reason, the wizard didn't have the same charm he did in the first film, either.