She said: “So we don’t then say ‘Oh, well, you know, in 1984, she suddenly had slightly longer hair,’ though it was actually true, she did in 1984 have long hair for the only time and thankfully, Peter Morgan seems to write around these moments!
“So we didn’t actually see during that period of time, but so we don’t necessarily tell every visual story that we researched.
“But we like to kind of be informed by all of that information.
“And then really, I think the process is the same for all the characters, which is that we start by trying to get a shape, and if we can get a very convincing silhouette using a wig, so that if you kind of squint or facing the other direction it could be her then I’m happy because I feel like beyond that the performance.”
The Crown seasons 1-4 are available to stream on Netflix.