Hollywood's Sexiest Onscreen Couples

Leonardo DiCaprio and Kate Winslet broke box office records as star-crossed lovers in the 1997 epic romance "Titanic." After their steamy kissing scenes on the ship, the two talented actors went on to star separately in many award-winning roles. Ten years later they reunited on-screen in "Revolutionary Road," but played an unhappily married couple. (Paramount Pictures/AP Photo)