The producer – who had a career spanning decades – was described by Lord Of The Rings director Sir Peter Jackson as a “monumental figure in the film industry”.
Jon Landau, producer of Titanic and the Avatar films, has died at the age of 63.
Known as the long-time producing partner of James Cameron, the movie-making heavyweight is credited with helping to make three of the top four highest-grossing movies of all time.
His family announced his death on Saturday. No cause of death was given.
Lord Of The Rings director Sir Peter Jackson and his wife Fran Walsh, whose Weta FX company were behind the visual effects house for both Avatar films, led 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.”