Washington [US], July 7 (ANI): Filmmaker James Cameron paid his last tribute to ‘Titanic’ and ‘Avatar’ producer Jon Landau, according to Deadline. “The Avatar family grieves the loss of our friend and leader, Jon Landau,” he began in a statement. “His zany humor, personal magnetism, great generosity of spirit and fierce will have held the center of our Avatar universe for almost two decades. “His legacy is not just the films he produced, but the personal example he set — indomitable, caring, inclusive, tireless, insightful and utterly unique. He produced great films, not by wielding power but…