Kate portrays Mary, Princess Royal in the project and will be making her Downton debut in the film – so how will she shake things up when the cinematic curtain raises next month?
Speaking exclusively to Digital Spy, the Peaky Blinders actress teased her character’s storyline, explaining: “I’m not sure if she’ll shake things up as she’s quite a shy and modest character, she draws on her inner-strength and personal struggles as a member of the royal family.
“It’s not so much her shaking things up, but there will be a lot of Downton drama, don’t worry.”
Kate also reflected on the mammoth job of turning a much-loved TV show into a film too and praised creator Julian Fellowes for what he’s achieved on that front.
“There’s a lot of storylines” Kate told us. “I think what Julian Fellowes is doing so well with the Downton film is that there are so many storylines that are kind of knotted together and have to play out for an hour and a half or two hours, it’s quite a sophisticated thing to do.
“But I think it’s worth giving it a go, it’s worth trying because I think it can be very powerful and very punchy.”
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“They’re just lovely people, it’s a huge cast, that’s what’s so special about Downton, is that there are always so many people knocking about,” she added.
“We had a number of scenes where there were a number of people there – the thing I do remember is that there was always a game of Dobble on the go in the green room. It’s one of those things you could dive in and out from and cause a huge amount of hilarity and we were just having a good laugh between scenes and hang out.
“But yeah, Jim and Maggie are amazing and Downton wouldn’t be it without them.”
Downton Abbey will be released on September 13 in the UK and on September 20 in the US.