Carey Mulligan has revealed she tried not to be a cry-baby as she filmed Never Let Me Go.
The Bafta-winning actress stars in the melancholy big-screen adaptation of Kazuo Ishiguro's best-selling novel alongside Andrew Garfield and Keira Knightley.
She said she struggled not to be tearful on set.
"It was about trying not to cry all the time - I cry all the time, it's my modus operandi, so we all wanted to hold back, and not drop a tear," she revealed.
"We were watching each other a bit. It's always harder to maintain raw enthusiasm or joy than to go to a really dark place. We didn't want to portray tragedy or observe our circumstances."
Carey, who was propelled to fame after her award-winning performance in An Education, had no doubts about saying yes to Never Let Me Go.
"I read the book when it came out and I loved it first and foremost as a love story, about people who want very simple things from life and can't get them," she said.
There was pressure to do the book justice, especially with the author on set.
"This was doubly intimidating because we had Ish (Ishiguro) with us and you want it to be everything that he imagined when he wrote it and there are people who read the book recently and are in love with it, so there's more pressure," she added.
:: Never Let Me Go is in cinemas now.