Avatar (2009 film) themselves to change into a Na'vi. "Avatar: A Confidential Report on the Biological and Social History of Pandora", a 224-page book in the form of a field guide to the film's fictional setting of the planet of Pandora, was released by Harper Entertainment on , 2009. It is presented as a compilation of data collected by the humans about Pandora and the life on it, written by Maria Wilhelm and Dirk Mathison. HarperFestival also released Wilhelm's 48-page "James Cameron's Avatar: The Reusable Scrapbook" for children. "The Art of Avatar" was released on , 2009, by Abrams Books. The book features
Avatar (2009 film) their friend and bring them, so that they can enjoy it. They want to be the person to bring them the news that this is something worth having in their life." After the film's release and unusually strong box office performance over its first two weeks, it was debated as the one film capable of surpassing "Titanic"s worldwide gross, and its continued strength perplexed box office analysts. Other films in recent years had been cited as contenders for surpassing "Titanic", such as 2008's "The Dark Knight", but "Avatar" was considered the first film with a genuine chance to do so,