Meanwhile, Amanda – a mother of two with Sherlock star Martin Freeman – recently opened up about her character and told MailOnline: ‘The hardest thing about playing Miss Mardle is keeping everything tightly in check and understated. I’m not like that at all.’


What's so funny? The two star share a joke and look at their phones between shooting scenes


Feeling tired? The actress, who plays head of accessorises Miss Marble, kept herself hydrated by ensuring she drank some water during intervals


The drama highlights life in London during World War One, when men were called up top fight in the fields of France and Belgium.
‘It was very moving when we did the read-through for those scenes and also during filming. We forget how optimistic these young men were,’ she said.
‘Young boys who thought they were going off to fight in a glorious campaign and be back before they knew it,' she said.


High and mighty: Tom Goodman-Hill struts his stuff in his smart three-piece suit

‘They didn’t realise the huge consequences. Looking at it in retrospect, it’s heartbreaking. Some of them were just 17. And once they’d gone off to fight that was it.
‘You didn’t know what had happened to them unless you got a letter or telegram.
‘It made me think of my own two children. As a mother, I pray that neither one of them wants to be in the Army. So God knows what the mums of those boys would have felt like.’


Suited up! The actor,Ray Ban Sunglases, who plays Mr Grove in the period drama, looked very suave in his character's get-up