James Cameron effects. The film was originally scheduled to be released in May 2009 but was pushed back to December 2009 to allow more time for post-production on the complex CGI and to give more time for theatres worldwide to install 3D projectors. Cameron originally intended "Avatar" to be 3D-only. "Avatar" broke several box office records during its initial theatrical run. It grossed $749.7 million in the United States and Canada and more than $2.74 billion worldwide, becoming the highest-grossing film of all time in the United States and Canada, surpassing Cameron's "Titanic". "Avatar" also became the first movie to ever earn
Titanic (1997 film) the "Titanic" builders. The Grand Staircase, which features prominently in the film, was recreated to a high standard of authenticity, though it was widened 30% compared to the original and reinforced with steel girders. Craftsmen from Mexico and Britain sculpted the ornate paneling and plaster-work based on "Titanic's"' original designs. The carpeting, upholstery, individual pieces of furniture, light fixtures, chairs, cutlery and crockery with the White Star Line crest on each piece were among the objects recreated according to original designs. Cameron additionally hired two "Titanic" historians, Don Lynch and Ken Marschall, to authenticate the historical detail in the film.