Leonardo DiCaprio had a boys' day with Lukas Haas and Rick Salomon, hitting up the Prada store. While Lukas is Leo's constant companion, his other good friend and co-star Kate Winslet recently talked about what it was like to get back to work with him on the set of Revolutionary Road. When asked about doing a sex scene with her husband directing, she said, "I just kept saying, 'This is too . . . weird.' And Leo was like, 'Oh, get over it.' And I'm going, 'Yeah, a little reminder: You're my best friend. He's my husband. This is a bit weird.'" Kate also said that she and Leo quickly found their Titantic chemistry again, so we'll look forward to seeing the BFFs reunited on the big screen in January.