Everyone wants to know what's up with Ryan Gosling and Eva Mendes. Sure they're a couple, but we want juicy details, right? Well, in the March issue of "Marie Claire," which Eva covers, she opens up. But just slightly. "He’s your dream costar," she offered. "I have never felt so creatively satisfied on a film." And that was the end of that. She's referring to ”The Place Beyond The Pines," which she shot with Gosling last Fall. Guess we'll have to wait for the film to see if the chemistry between the two made it from real life to the big screen.