The 'While We're Young' star admits she couldn't have carved out a successful career in Hollywood without the support of her best friend, reported Contactmusic.
"I was lucky that Nicole Kidman was always there to support me, console me, keep my spirits up and help me believe in myself. She's been such a good friend over the years," she said.
The 46-year-old beauty, who has sons Alexander, seven, and Samuel, six, with long-term partner Liev Schreiber, said she is reluctant to take on traumatic roles these days because she is so happy in her personal life.
"I feel such a warmth with Liev and the boys. I look forward to everything now. I've always had a happy nature, it was just a matter of getting to a place where I could let that side take charge again. Me and my men have such fun together.