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Jon Landau, the producer of the Titanic and Avatar films, has died at the age of 63.
The movie-making heavyweight is known as James Cameron's long-time producing partner, and he is recognized with assisting in the production of three of the top four highest-grossing films ever.
His family announced his demise on Saturday. No cause of death was specified.
Sir Peter Jackson, director of Lord of the Rings, and his wife Fran Walsh, whose Weta FX business handled the visual effects for both Avatar films, led the tributes to the producer.
"We speak for the entire Weta FX team when we say we are devastated by the loss of Jon Landau," they said in a statement.
"Jon was not only a monumental figure in the film industry but also a cherished collaborator and friend."
In a career that began in the 1980s and spanned decades, Mr Landau started work as a production manager and rose through the ranks to co-producer.
He co-produced hits such as Honey, I Shrunk the Kids in 1989 and Dick Tracy, starring Al Pacino and Madonna, in 1990.
