(Cover) - EN Showbiz - Carey Mulligan likes working with Keira Knightley because they can be blunt with each other.

The actresses first met each other on the set of 2005 movie Pride & Prejudice. They have since teamed up again for the upcoming Never Let Me Go, which was recently released in America. The film is about a group of young people who have to come to terms with the way their life has been mapped out by others.

Carey was thrilled to spend time on a movie set with Keira again, explaining she loves working with friends as its less stressful. We stayed friends and acting with someone you know is easier, she explained. We could be really blunt with each other without feeling insulted or hurt.

Never Let Me Go is based on a novel by Kazuo Ishiguro, which is the reason Carey wanted to appear in it. She read it when it as released in 2005 and it had a profound effect on her.

I was obsessed with it when it first came out, she told Us Magazine. (C) Cover Media