*Update* - New BTS Featurette The minds behind Morpheus: Peter Capaldi and Jenna Coleman explain how filming in a freezer is a chilling challenge! https://youtu.be/ho8xUEH27w4 Through fire and flame: Doctor Who's SFX Supervisor, Danny Hargreaves, tells us how he achieved the impressive flame effects in 'Sleep No More'. http://www.youtube.com/watch?v=6J_Sqxd5QzE Voice of the Computer: Every obnoxious … Continue reading ‘Doctor Who’ Series 9 Extra – Three New BTS Featurette For Episode 9, “Sleep No More”