They formed a close friendship after starring in James Cameron's iconic romance Titanic, released back in 1997.

And Kate Winslet and Leonardo DiCaprio have proved their friendship is just as strong twenty years later, as they were seen enjoying a holiday together in France.

The co-stars, who played Rose DeWitt Bukater and Jack Dawson in the famous flick, recently reunited in Saint Tropez when Winslet, 41, supported her longtime friend and co-star, 42, at a gala for Leo's environmental foundation back in July.

The pair not only posed for photos at the event in the South of France, but they took some time to catch up poolside at Leo's luxurious French estate.

Kate slipped into a florescent orange bikini for the rendezvous, which she paired with a sheer white beach dress, to accentuate her enviable womanly curves.

Keeping casual ahead of their glamorous evening, the mum-of-three added a selection of delicate gold necklaces and tied her look together with oversized dark sunglasses.

She swept her hair into a messy ponytail and opted to go without make-up for her day by the pool, to draw attention to her enviably glowing complexion.

Meanwhile Leo, who most recently dated model Nina Agdal, stripped down to his swimming trunks, slung low at his hips to ensure he made the most of the glorious sunshine.

Adding a gold necklace of his own, the star kept casual as he spent a day relaxing with Kate - with his hair falling naturally to the side, proving him to be as handsome as his younger Titanic days.

Clearly with quite a bit to catch up on, the two friends were seen chatting on the deck of Leo's villa as they soaked up the sun, before they walked back into the house with their arms wrapped affectionately around each other.

Kate and Leo were in St Tropez for Leo's annual foundation gala held at the Domaine Bertaud Belieu, where the pair auctioned off the chance to dine with them at the winner's place of choice in New York City.

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