Backstage at Christmas (CON episode)

 was a special mini-episode of Doctor Who Confidential that was included on the series 1 DVD boxset. It served as a preview for The Christmas Invasion, and was the only behind-the-scenes material about that episode made by the Confidential production team.

It technically did not go out under the Doctor Who Confidential banner, ostensibly because it was a preview of an upcoming episode, rather than a review of an episode that had already been broadcast. However, the episode did have enough commonality with Confidential — including theme music, narrator, and production team — for most to consider it a part of the Confidential series. It was Simon Pegg's final act of narration for the series. David Tennant, having previously narrated the Confidential team's "preview" episode, Doctor Who: A New Dimension, made his first appearance in front of the cameras for the DWC team.

Aspects of production covered
This short episode was somewhat handicapped in terms of what it could reveal about the episode, as it was made available to the public before The Christmas Invasion itself was. Therefore, it focused on three rather insignificant scenes in the accompanying episode: The entire episode was bound together by the general theme of the differing time pressures that a production crew faces on night shoots versus day shoots. It also contrasted the problems of working with large numbers of extras versus the difficulties of setting up shots involving large numbers of potentially dangerous practical effects.
 * Jackie and Rose Tyler trying to nurse the Doctor back to health in their apartment
 * The Roboform attack on Mickey and Rose in an open-air market, with particular emphasis on the felling of a large Christmas tree
 * The choreography of blood controlled extras in a suburban Cardiff street

Additional topics covered
This episode focused exclusively on the production of The Christmas Invasion.

People interviewed

 * Director James Hawes
 * David Tennant
 * Noel Clarke
 * Visual effects supervisor Mike Crowley
 * Producer Phil Collinson

Home video releases
This episode was a special feature exclusive to the series 1 DVD boxset.

Additional info
Though this episode goes to great lengths to suggest that the production team had only one opportunity to fell the Christmas tree in the open-air market, the later in-vision commentary to The Christmas Invasion contradicts this. Phil Collinson says there that they actually did reset the scene and film it again.