The 50th anniversary of the world’s best-loved time travelling Gallifreyan is soon to descend on Britain, invading not only our televisions but also our cinema screens in full 3D on the 23rd of November. Here are five reasons fans are getting excited for this historic moment. 'The Day of the Doctor' The feature length episode 'The Day of the Doctor' will not only see the return of David Tennant, recently voted Whovians' favourite Doctor , but will also feature John Hurt as a mysterious prior incarnation that spawned after Paul McGann but before Christopher Eccleston’s version. Confused? Don’t worry; it’s all just wibbly wobbly, time-y wimey… stuff! With so many doctors and a few assistants popping up in one episode, it's sure to be unmissable. The cinema screenings have proven so popular that over 200 theatres around the country are taking part, recently adding more show times when the original allocation sold out!