TitanicTwenty years after making one of Hollywood's biggest epics, "Titanic" stars Billy Zane, Leonardo DiCaprio and Kate Winslet reunited this week.

Zane shared a photo from Wednesday night's gala event in France with Leo and Kate, saying, "Gang's back together. Now we're saving icebergs. Go figure." (Sadly, this seems to be the only photo of the trio from the event.)

Of course, in the 1997 blockbuster, Zane and iceberg were both bad news for Leo's character Jack. But now Leo is dedicated to raising money for the environment, including icebergs.

The occasion was a fundraiser for Leonardo DiCaprio Foundation, which the Oscar-winner founded in 1998 for "the health and well-being of all Earth's inhabitants, focusing on wildlands and oceans conservation, climate change and indigenous rights."

The much-hyped private dinner with Leo and Kate was auctioned off the same night, but the name of the bidder, and how much they paid for the privilege, has not been announced.