I enjoyed it personally, and I didn't see the twist till late on....I think the fact you mentioned it will have prolly spoilt it for those that haven't seen it now....

As to the Doctor...I didn't like him to begin with, but he's grown on me and I now think he's one of the best of the recent ones, the last one aside....

Sylvester McCoy anyone...!

Exactly....

Injustice will be avenged.
Cofiwch Dryweryn.