 The "Doctor Who" logo in the opening credits has been slightly redesigned from the previous one, with more background detail and flare on the "lozenge" that the words "Doctor Who" sit on.For legal reasons, the production team made obviously fake banknotes for the scene where money comes flying out of a cashpoint.The £10 notes feature the Doctor's face and the phrases "I promise to pay the bearer on demand the sum of ten satsumas" and "No second chances — I'm that sort of a man".