Mental retardation occurs in 2.5-3% of the general population. About 6-7.5 million mentally retarded individuals live in the United States alone. Mental retardation begins in childhood or adolescence before the age of 18.
The film was partially funded by Paramount Pictures and 20th Century Fox, its distributors. At the time, it was the most expensive film ever made, with an estimated budget of US$200 million. In 2009, James Cameron's Avatar (the first film Cameron had made since Titanic) topped Titanic, however. The film was originally scheduled to open on July 2, 1997; however, post-production delays pushed back its release to December 19 instead. Titanic was an enormous critical and commercial success.
Avatar had been in development since 1994 by James Cameron, who wrote a 114-page scriptment for the film. Filming was supposed to take place after the completion of Titanic, and the film would have been released in 1999, but according to James Cameron, technology needed to catch up with his vision of the film.