Eva Green gets "depressed" if she is on a diet. The Dark Shadows actress was once told she had to lose weight for a role, but found going on an all-soup eating plan made her miserable and she couldn't do it again.

"Before my first film, the casting director asked me to lose some weight, saying, 'On screen you're going to look much fatter.' I started drinking soups and then I was like, 'I can't do it, I can't go on a diet.' It's hell, it makes you very depressed - food is so important to me. I couldn't go on."

Eva admits she feels like an "ugly duckling" in Hollywood, but would not undergo cosmetic surgery to improve how she felt about herself: "It's not all about physique and how beautiful you look. In this business actors who have Botox or surgery make you very aware of age. It's awful. In Los Angeles, I feel like the ugly duckling, like I'm from Venus or something."

The 31-year-old star admits she is constantly on the look out for more "ballsy" roles because so often beautiful women are only cast as the girlfriend. "It's so boring to play the girlfriend. Most of the women in film are there to be beautiful to the man. It's quite hard to find a ballsy or complex character. So the roles I've taken are those. Lots of people put me in the dark category," she told InStyle.