Carey Mulligan's friends aren't concerned by her fame.

The 40-year-old actress has enjoyed huge success in Hollywood, starring in movies such as Drive, Inside Llewyn Davis and The Great Gatsby - but Carey manages to escape the glitz and glamour of the movie business whenever she returns to her home life in Devon, south-west England.

Speaking to The Hollywood Reporter, Carey explained: "I was going on to a friend about One Battle After Another, saying it's the greatest thing I've seen in the last 10 years, and she was like, 'Who's in it?'

"I was like, 'Leonardo DiCaprio and Sean Penn.' And she said, 'Which one's that? Is he from Shaun of the Dead?'

"I was like, 'I can't f****** believe you don't know who Sean Penn is, but also, God, that's great.

"Here I am worrying about what people are going to think of my show or how they're going to compare it to other things, and my best mate is like, 'Who's Sean Penn?'"

Meanwhile, in March, Carey received a CBE from King Charles at Windsor Castle.

The film star was honoured by the monarch for her services to drama at an investiture ceremony on March 31.

Carey - who is married to Mumford and Sons musician Marcus Mumford - said of receiving the award: "I feel so unbelievably lucky to get do a job that I really, really love.

"To have this kind of recognition on top, is just sort of extraordinary to me."

Carey was also quizzed about who the next James Bond should be, as she is set to star alongside former 007 Daniel Craig in Greta Gerwig's upcoming Netflix film Narnia: The Magician's Nephew.

The three-time Oscar nominee said: "Oh, my gosh, that's so hard. Really hard, isn't it?

"He's got big shoes to fill. I think the thing about Daniel is that he was an extraordinary actor, I don't think he was sort of the person you would have thought of for that part.

"I think the main thing is it's just got to be someone who's an incredible actor."