Published Monday, 16 April 2012
Reflecting on the passing of 15 years during which Northern Ireland brokered a power-sharing agreement and voters in the USA elected their first African American president, at the Titanic 3D premiere, Kate looked at Leo and said, "He's fatter now - I'm thinner".
Off-screen, a Grammy, an Academy Award and two Golden Globes later, Kate's realistically curvy figure, anti-plastic surgery stance and real-life super hero status (she saved Richard Branson's elderly mother from a fire at his Necker Island home) have cemented her role as a women and men's favourite.
The world has watched Winslet evolve from Sense and Sensibility's giggly Marianne Dashwood to former Nazi Hanna Schmitz in The Reader, and with that her sense of style has moved on from her early incarnations as a 1990s Maid Marian figure to Hollywood leading lady.
For the Titanic 3D premiere last month, Brit designer Jenny Packham's black floor length jewel-encrusted dress stood out from the crowd and could almost make one forget how Winslet's journey to full-blown glamour has made pit stops at OrangeHairVille and Snake Print Town.
It was another Jenny Packham number at this year's Oscars when she accompanied the floor-length demure gown - which had just a flash of skin - with delicate earrings and the Winslet bun that have become one of her best known red carpet choices.
Kate's newly found old Hollywood style was also shown off at the 2010 Oscars, when she turned up in a metallic YSL number and soft waves of which Veronica Lake would have been envious. It was a departure from the matronly one-shoulder YSL gown which she wore to pick up her Best Actress win for The Reader.
After splitting from director Sam Mendes, Winslet began dating the eccentrically-named Ned Rocknroll and the mother of two stepped up her wardrobe, becoming among the first of the celebs to cause a stir in this figure-enhancing Stella McCartney illusion dress.
The woman who reacted angrily after she was airbrushed in for a 2003 cover of GQ or a 2008 edition of Vanity Fair instead uses Stella McCartney cleverly constructed dresses to enhance her curves.
For some of Kate's more daring outings, bodycon has become a favourite and during the 2011 Venice film festival, the star opted for a chic taupe-coloured Victoria Beckham dress, complete with signature exposed zipper. Kate again pared back her hair, opting for a simple ponytail to complement the open neckline.
Even her sparkly nude-based Jimmy Choo Violas couldn't outshine the woman who survived the sinking of the world's most famous ship.
Through the years, Kate's style has evolved through barefoot earth chick, Maid Marian-esque outfits and some questionable outings in leather trousers to today's chic simplistic dresses.
She will never use her outfits to push boundaries or grab headlines, instead relying on her critically acclaimed acting abilities.