This zany Horror Comedy has amazing makeup & SFX. It also fulfills genre's point: fetishistic schadenfreude towards pop culture's most irritable archetypes. I, for one, welcome our mutilated sheep overlords... Baaaa
It tries to be an early Peter Jackson movie, but it fails. Bad acting, gets quite boring several times etc. This movie so bad that it's not a "good b-movie".
Few things that I approve are the nice practical gore effects.