Didn't watch it, for some reason it didn't look too appealing. I skimmed through various bits of it and that was enough.
I think James is right, it's not just Islam that treats animals in a way, we in the west, find appalling. I'm no expert but I don't think the Jewish method for killin animals is the nicest either. I could be wrong though.
And there are more than enough cases of animal cruelty in Britain, albeit not on the same scale as that!