The BBC sci-fi drama predominantly films in Wales, but production shifted to London's Embankment to shoot an action sequence.
Copyright: WENNPictures from the shoot show Smith and Coleman - who plays the Doctor's new companion - climb aboard a motorbike and race alongside a red London bus.
Doctor Who will return to BBC One this Christmas, with Coleman making her debut as a regular in the show's 2012 festive special.
The 26-year-old actress made a surprise appearance earlier this year in series seven premiere 'Asylum of the Daleks' - written by Who showrunner Steven Moffat.
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> Doctor Who: New filming pictures emerge - gallery