Matt Smith has spoken to Digital Spy ahead of the start of Series 6: Part 2, and during the interview he also talks about this year’s Christmas special!

“I know what it’s about,” he said. “I can’t tell you anything, but I went for dinner with Steven and he told me the first two episodes of next season. Honestly, it’s so brilliant, it’s such a clever idea that I was like, ‘Well…’ But we talked a lot about the special then. It’s one of my favourite ones to make. It’s got a clever idea. I don’t know where he gets it.”