New Trailer Available

A new 40 second trailer is available online at the official BBC Doctor Who site. It features specially shot material contrasting the Doctor and Martha Jones, ending with brief clips from the first 5 episodes. No transmission date is given, merely that Doctor Who is "coming soon".
The trailer starts with the Doctor and Martha shown split screen. The dialogue is as follows.Martha: I battle with my textbooks.Doctor: I battle with monsters.Martha: I try to save money.Doctor: I try to save the universe.Martha: I'm gonna be a Doctor.Doctor: I am the Doctor.Martha: Well. Let's hope this box is big enough for the both of us!With the last line the split screen merges and a series of clips are shown, including the Judoon from Smith and Jones, witches and The Globe Theatre from The Shakespeare Code, New Earth and a dalek. The trailer ends on a shot on Martha and the Doctor in front of the Tardis.