This England, starring Kenneth Branagh as Boris Johnson and Ophelia Lovibond as Carrie, airs on Sky Atlantic on Wednesday 28 September.
"If you have a hostile opinion of Boris, you'll probably think the series is too gentle on him. And if you love Boris, you'll probably think the series is too hard on ," said Winterbottom.Lovibond told Sky News she tried to avoid news of real events:"Someone would leave a newspaper on set, and I would tell myself, 'Oh I shouldn't read that because it's going to be something I don't know yet'. It was fresh.
"Playing her made my curiosities about her motivations peak," added the Guardians of the Galaxy actress. "We talked to people who had been in Number 10 and worked through the whole of the first wave there. We got their first-hand accounts."