Countingdown.com has news that the

Countingdown.com has news that the cat playing Prof. McGonagall’s animagus form is missing. The interesting part is this:

Knut, who is almost two, had settled well into home life again after a month away filming on location at Durham Cathedral..

He stars alongside Dame Maggie Smith as the professor who transforms herself into a cat to stalk the corridors of Hogwarts School of Witchcraft and Wizardry.

OK. Which is he? Mrs. Norris or Prof. McGonagall in cat form? They seem to be a bit confused.