The 36-year-old, who is seeing a fashion executive Gian Luca Passi, could never settle down with a fellow thespian because she likes to save her drama for the big screen, reported Contactmusic.
"I don't need any drama at home, only on screen! Talking shop, auditions, etcetera when I get home in the evening would be very boring," she said.
The actress has been seen in some of Hollywood's biggest films in the last two years, including 'The Tree of Life' and 'Zero Dark Thirty', which she finds amusing as she struggled to get cast for years because of her red hair.
The star credits veteran actor Al Pacino with giving her the big break and making her see she could have a career in films.
"Al helped me learn to love the camera. He was one of the best teachers I've had.