Hayley Atwell is in her backstage quarters at the Theatre Royal Drury Lane, where she’s starring in Much Ado About Nothing with Tom Hiddleston. With a bed, mini-kitchen and anteroom, it feels more like a Claridge’s suite. It’s a world away from the ‘tiny cabin’ aboard a boat in the Arctic that she stayed in while filming Mission: Impossible – The Final Reckoning (out in May). ‘We filmed in Svalbard,’ she explains. ‘It looked like a massive industrial fishing boat.’