Johansson happy with her curvy figure

Scarlett Johansson struts her stuff in cleavage-baring dresses on the red carpet, but in real life, she'd rather remain a mystery.

"I can't stand those articles where people spill their life story," Johansson says in the October issue of InStyle magazine, on newsstands Friday. "After a while I feel like I know more about them than their best friend does — and that's weird. It's better when you don't know everything."