By: +David Herron; Date: December 5, 2013
Tags: Doctor Who
The Day of the Doctor, when they rewrote the story we'd been told about The Time War. Rather than saddle the Doctor with the weight of having destroyed Gallifrey, they gave The Doctor a new story - that he saved Gallifrey in its moment of greatest danger. Which is what gave the Doctor the gravitas to later kick Rassilon off of Gallifrey. This documentary shows how they made the episode.
Review: The Time of the Doctor - Smith Falls into Capaldi after Killing a Wooden Cyberman Behind the Lens - The Day of the Doctor - Doctor Who 50th Anniversary - BBC