The director previewed 18 minutes of footage that has been converted into 3-D for next year's re-release of the film.
The footage shown during the invite-only presentation at Paramount Studios included eight scenes, spanning from Kate Winslet's well-to-do Rose looking up at the Titanic for the first time to the moment when the stern dramatically plunges into the sea at a 90-degree angle, as well as the iconic scene of Rose and Leonardo DiCaprio's drifter Jack embracing on the bow.
Cameron said that DiCaprio and Winslet have yet to see the 3-D footage of "Titanic," but he has spoken with Winslet about the project, and she is "on board." He hasn't talked to DiCaprio about the rerelease because he's been busy shooting "The Great Gatsby" in Australia but he hopes to reconnect with the "J. Edgar" star soon.
Cameron said it will take 300 artists 60 weeks to create the 3-D version and cost $18 million.
The re-release is set for April 6, 2012 to coincide with the 100th anniversary of the Titanic setting sail on April 10, 1912.
After it debuted in 1997, "Titanic" won 11 Academy Awards and grossed more than $1.8 billion worldwide, second only to Cameron's "Avatar," which was filmed in 3-D and released in 2009.
The Associated Press contributed to this story.