By far the sweetest moment on the red carpet has got to be old friends Kate Winslet and Leonardo DiCaprio reuniting. The two actors, who first met on the set of smash-hit ‘Titanic’ when they were both 19, have remained firm friends throughout the years, and are frequently caught gushing about their love and admiration for one another. On spotting Kate posing for the cameras on the red carpet, kind hearted Leo beckoned to her and then the two posed for photos and went inside together. Lovely!