Doctor Who 2005 question

[Mikey]

Was just watching the 2006 series on DVD and everytime I see this trailer for the 2005 series i'm always left scratching my head what episode did that shot of Eccleston running down the hall being chased by a fireball come from ?

http://www.youtube.com/watch?v=1hQyujVvRcY

m

[Surfsup]

It's specifically shot for the trailer and not from a season episode.

[Mikey]

That's what I figured but I just wanted to make sure.