Behind The Lens: 'The Day of the Doctor' - Doctor Who 50th Anniversary

As 'Doctor Who' celebrates 50 years, here's a special behind the lens look at the year's most anticipated television drama. Voiced by the Sixth Doctor, Colin Baker, catch up with old friends and meet some new ones. Featuring Matt Smith, David Tennant and Jenna Coleman with Billie Piper and John Hurt, as well as lead writer and executive producer Steven Moffat, discussing their 50th Anniversary experiences.