Doctor Who50th anniversary special.

The former Time Lord and his current counterpart were snapped at the script reading for the one-off special.
[uuid=cbe4d981-48a0-464b-80d1-db76e0252c29]We told you the other day[/uuid] how Tennant and Billie Piper are returning for the feature-length episode, appearing in the BBC sci-fi drama for the first time since 2010's The End Of Time.
John Hurt has also been confirmed to be appearing in the show, which will apparently be 90 minutes long and filmed in 3D.
Smith has described the anniversary show as "just spellbinding".