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.
In 1995, production began on the film when Cameron shot footage of the actual Titanic wreck. The modern scenes were shot on board the Akademik Mstislav Keldysh, which Cameron used as a base while filming the actual wreck. A reconstruction of the Titanic was built in Baja, California, at Playas de Rosarito. Scale models and CGI effects were also used to create a more realistic version of the ship.