'Titanic' remains the biggest hit of Hollywood star Leonardo DiCaprio's career, but it sounds like getting the actor to star in the film was tough work for director James Cameron.
As the second instalment of epic science fiction film 'Avatar: The Way of Water' is creating a tizzy at the box-office, award-winning director James Cameron has spoken about the pressures a filmmaker has to go through on making a movie at such a grand scale.