I bought this over a year ago when the price had come and quite enjoyed it and was in the mood for a piece of daftness so I watched it again. The question is: should you bother to see it all?
Well there are: naive environmentalists, evil genetic experimenting scientists, a wicked farmer, sibling rivalry, (wait for it, I'm getting to the good stuff -now) carnivorous sheep, hungry sheep foetuses, mutant and mutating man-sheep (think wolfman without the fangs), the tender love between a man and a sheep (tastefully done), severed body parts by the bucket load, and all the entrails you can eat, plus a sheep-o-phobic hero.
The only problem is that no matter how much gore you fling at the audience, killer sheep just aren't scary and neither are the human-into-sheep hybrids. So: funny, yes; gory, yes; scary, no. But it is a lot of fun.
And watch out for the very funny gag at the end which immediately follows a sheep-dip.