By Susan King, Los Angeles Times Staff Writer Will romantic lightning strike twice for Leo and Kate? The star-crossed lovers of the 1997 Oscar-winning best picture, "Titanic," have reunited for the drama "Revolutionary Road," directed by Kate Winslet's hubby, Sam Mendes. In the film, based on the novel by Richard Yates, Winslet and Leonardo DiCaprio play a supposedly happily married suburban couple in the 1950s with two children. The dark drama is scheduled to be released in December, exactly 11 years after the two nearly melted that pesky iceberg with their passion in James Cameron's epic. During cinema's Golden Age, romantic teams were the norm because stars were under contract to certain studios. So if a pairing caught on with an audience, the studio would reunite them year after year, like Ginger Rogers and Fred Astaire. But these days, it may take years before actors are teamed up again in a movie. Here's a look at some contemporary romantic pairings and a few from the classic age that have warmed the cockles of moviegoers hearts.