cheers for that documentary wildman, always nice to watch such things, another good one if you haven't seen it is "the union: the business behind getting high"
http://www.putlocker.com/file/3541E940A34D22F3
i reckon we should get some resources up about this lovely plant, how to make tinctures, creams, fibres etc.
Here's the basics on extracting fibres from hemp-
You need to throw the hemp stalks into water and keep them submerged for a few weeks and let them rot- this is called retting.
After you ret the stalks, you need a hackle to separate the fibers. A hackle can be easily made by making sort of a comb from a piece of wood and a lot of nails. Attach your hackle to a solid surface (a saw horse is good).
Now you take your dried, retted, rotten hemp stalks and start "beating them to death" by hitting them over the hackle. This separates the fibers from the hurds. (Hemp hurds can make bio-fuel) Depending on how long you keep flogging it, you will have coarse fiber for rope, or with longer processing, fiber fit for cloth.
Then you let your fibers for cloth bleach in the sun for a few more weeks- or use some chlorine bleach
now you've got your fibres, heres how to make cordage out of it
http://www.natureskills.com/survival/how-to-make-rope/