A behind the scenes piece on the upcoming Doctor Who Christmas special "A Christmas Carol" has surfaced on YouTube. It airs on BBC America on Christmas Day.
Here's the official synopsis:
"Amy and Rory are trapped on a crashing space liner, and the only way the Doctor can rescue them is to save the soul of a lonely old miser, in a festive edition of the time-travelling adventure, written by Steven Moffat. But is Kazran Sardick, the richest man in Sardicktown, beyond redemption? And what is lurking in the fogs of Christmas Eve?
Matt and Karen return for an all-new Christmas special, along with Arthur Darvill and guest stars Michael Gambon (Harry Potter) and Katherine Jenkins."