Peter Capaldi: Doctor Who new series is "quite scary"

Stars of the TV show Doctor Who have greeted fans at a red carpet event in Cardiff as the first episode of the new series was given its world premiere.

Peter Capaldi, making his full debut as the twelfth Doctor, was joined by Jenna Coleman, who plays his companion Clara.

Following events in the Welsh capital, Peter will begin his Doctor Who world tour visiting five continents in 12 days.

The new series begins on BBC One on 23 August.