Doctor Who/ News 50th Anniversary Filming: Doctors Unite April 17, 2013 0002170Filming on the 50th anniversary is continuing today in Cardiff. As usual, spoilerphobes may want to avoid. Show: show The first picture of David Tennant and Matt Smith together in costume has been captured. Along with a Zygon in the background. Pic by HWBCymru UPDATES: Ten’s TARDIS: David Tennant and Joanna Page run away from the Zygons. Pic by RichardCobourne John Hurt in costume: Tennant between filming. Pic by DonkEdwards Joanna Page in costume: Gallery by BBCfangirl.