Sadly, movie!Remus has made quite an impact, and has resulted in fandom!Remus being a scarred cardigan-wearer.

I feel your pain, really, but this made me laugh out loud. Of all the things I thought might happen to fandom (and my concept of Remus) post-PoA movie, this was not one, and it never ceases to amuse me.

Also, I agree with musesfool about the scars. We know magically acquired scars exist, and werewolves are pretty darn magical. I believe he's scarred from the bite, but not on his face.