'Doctor Who' bosses promise new 'blockbuster' series

The new series of 'Doctor Who' will feature 14 "big, blockbuster-movie episodes".

Filming is underway for season seven of the hit sci-fi drama - which will see Arthur Darvill and Karen Gillan depart their roles as Rory Williams and Amy Pond - and show bosses have promised plenty of drama in the build up to the show's 50th anniversary.