Get the latest entertainment news, reviews and star-studded interviews with our Independent Culture email Get the latest entertainment news with our free Culture newsletter Get the latest entertainment news with our free Culture newsletter Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy noticeFirst-look images have been unveiled for the Call The Midwife Christmas special, Sisters In Arms, following the completion of filming. Call The Midwife, which follows the group of nurse midwives working in east London through the decades, began in January 2012 and has had 15 series, with each featuring a Christmas special. open image in gallery Julie Hesmondhalgh (left) as Sister Alice and Helena Wilson as Sister Julienne ( BBC )“Then war is declared – and life gets even harder. An exact broadcast date has yet to be announced but the special will be aired during the festive period.