 John Landau, an Oscar-winning producer who worked closely with director James Cameron on the Titanic and the Avatar series, has died. He was 63. Landau's partnership with Cameron led to three Oscar nominations and a Best Picture win for 1997's Titanic. In a statement, Cameron says Landau, quote, will be remembered as much for his vast generosity of spirit as for the movies themselves. I'm Haya Panjwani.