Description: With her effortless style and radiant beauty, Cameron Diaz is the consummate California girl, Covers InStyle May 2012 with her new movie What to Expect When You're Expecting set to hit theaters on May 18th, she amped up promotions by landing the cover of the May 2012 issue of InStyle magazine. The 39-year-old actress looked foxy in a Valentino dress with a Valentino Garavani belt for the Liz Collins shot front page while opening up about topics including friendship, love, having kids and turning 40. Highlights from Miss Diaz’s interview are as follows. For more, be sure to pay a visit to InStyle!