Olivia Colman has said she has found playing the Queen in the new series of The Crown much more difficult than any of her previous roles.

The Broadchurch star has to step into the award-winning shoes of Claire Foy as she takes over as the the monarch in the third series of the Netflix drama.

She is fresh from playing royalty in upcoming film The Favourite, in which she stars as Queen Anne, opposite Emma Stone and Rachel Weisz.

She told the Press Association: "It could not be more different.

"I find the harder is Queen Elizabeth because everyone knows what she looks like, everyone knows what she sounds like, everyone has an opinion on whether the casting is right.

"And I am loving the job, I am loving trying to play her, but I find her harder."

However she said she was having a "lovely time" in the role.

"The difference between the two, playing different people is what I went into this job for, that's the whole point of being an actor," she said, adding: "I want to do it justice and do it well and be respectful and all of those things – and the writing is incredible so that helps."

"There's still whispers about, 'Oh what's it going to be like in The Crown', so that makes it harder.

Meanwhile she said her new film was like a litmus test: "Because we've finished The Favourite now - it's out there, it's like our baby going out into the world and I hope people like it," she explained.

"I love doing the work so much, it's almost a shame that people have to see it, because people who weren't there get to say what they think about it, which is quite hard.

"But the fact that people have loved this (The Favourite) as much as I have loved it just fills my heart with such joy and makes me so happy.

"And it's sort of a litmus [test]. If somebody goes, 'No, I didn't like it'. I sort of think I wouldn't like them."

She said if someone took that view, she would think 'Well OK we're never going to get on'.

Colman admitted that this was "a little bit narrow-minded", but added: "I love it so much that I love it when people love it."

Colman said the new film, which stars three actresses in the main roles, is evidence that things are improving with regards to roles for women, but added: "There's still plenty of way to go, but things like this or Bridesmaids or Thelma And Louise – that was a while ago – it's all there.

"We just need to do it a bit more often; a bit more so it's 50-50 would be great. That's all we're asking."

The Favourite is released in UK cinemas on January 1.