When you see Jason Momoa cut through a bunch of dudes as though they were just butter statues, you don't realize how much work goes into every sword thrust and flying severed head. Until you see a video like this one.

Check out an exclusive look at the pre-viz for the "slave revolt" scene, from the special features on the Conan Blu-ray disc. Warning: there are glimpses of naked slaves and people's heads flying off, thus making this potentially NSFW.

There's a certain graceful beauty about just watching a group of stunt men do their thing, complete with cartoony fake heads flying off, and fake painted-on blood.

Conan appears on Blu-ray 3D Combo Pack, DVD, Digital Download, and On Demand on Nov. 22.