Tennant 'cried over final Dr Who scene'

David Tennant says he got emotional while reading his final moments as the 10th Doctor Who. The Scottish actor has six weeks left of filming and with the first of four Doctor Who specials airing on BBC One on Easter Saturday, he'll soon hand over his galactic reins to doctor number 11, Matt Smith.
What can we expect from the Dr Who Easter special, Planet Of The Dead?

It starts with Michelle Ryan in a catsuit stealing something important. Then she tries to escape on a red bus, a London red bus. But London transport being what it is, it slips through a wormhole in time and space and ends up on a planet on the other side of the universe.

One of the preview clips shows lots of red, strange things dashing through the air.

There's a bit of a swarm. There's also another alien race that are on the planet too called the Tritovores and then there's also stuff going on back on Earth as well. I can't get back. I'm trapped. But luckily we manage to communicate through the worm hole because we doctor a mobile phone.

Is it a funny episode? Or is it a moving episode?

It's quite a romp I think. It's got some dark moments. There's a tiny little hint at the very end that it's all about to get a lot darker. Because obviously at the end of the year it's the end of the line for the 10th doctor. This is kind of a romp. This is the last time the doctor gets to have fun, in a way.
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