Matt Smith’s second series was the first to open with a two parter – an ambitious adventure that takes Doctor Who back to its '60s Space Age roots, complete with trips to Apollo 11 and Area 51, and ...

See how a sequence of storyboards compares to the finished scene. In the first of these videos we look at the sequence where the Doctor meets the mysterious astronaut.

But if you go back and study The Impossible Astronaut, the impostor we’re now told was at Lake Silencio was far too convincingly in character as the 11th Doctor. After being zapped, he even ...