Doctor Who: 14 Cool Details Steven Moffat Just Revealed About The Day Of The Doctor
11. The Room Of Paintings Was Supposed To Be A Lift
Considering the scale and complexity of the production, there was bound to be a lot of unused footage that didn't make it into the final cut of The Day Of The Doctor.
One small addition - that Moffat "loved", but everyone else found too "silly" - was a quick shot revealing that the room full of paintings (the one with the picture of the Tenth Doctor in it) is actually a lift. As in, an elevator that moves up and down.
Moffat stated that a small insert was shot where "all the pictures slid up the walls as the room descended". This is probably why - in the final cut - the door to this room closes down like a shutter, sealing everyone inside.