Twenty years after the mighty Titanic went down (...on film....), the stars of the record-breaking movie have reunited, and they're giving audiences chills that rival iceberg-fraught waters.

Billy Zane, who played the infamously jealous Cal Hockley in the 1997 film, shared a reunion photo on Instagram Wednesday night (July 26) that featured him alongside co-stars Kate Winslet, who played Rose, and Leonardo DiCaprio, who played Jack. According to Vanity Fairthe group joined together for an annual auction hosted by the Leonardo DiCaprio Foundation in St. Tropez, France that aims to fight climate change. And Zane couldn't help but notice the irony.

"Gangs back together. Now we're saving icebergs. Go figure," he captioned the shot, which drew some eager response from followers.

"Awesome. You were my fave of the bunch and think you got a raw deal on that boat," one wrote, while another noted "I'll never let go."

Titanic, James Cameron-helmed film, broke the record for most expensive of all time and was nominated for 14 Academy Awards, of which it won 11. It was also the first film to cross the $1 billion mark in earnings.

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