Wow, I didn't know it was dogs. I swore in the theatres, I saw it 3 times, that it said scum. Then I read this post and saw that it was dogs. So I just put the dvd in and it's weird sounding, like it was changed from the original wording. I hope you can find it. I'd love to hear that even though I swore it said scum when I went all three times.
