When the Titanic is found, we see the ships name, TITANIC - LIVERPOOL. The name plate letters on the movie model are raised, but the letters on the real ship were cut into the hull plates.
The lifejackets that were supposed to be used for the sinking sequences were never used in the film. They would later be used for the Daniel Steele made-for-TV-movie "No Greater Love".
Mike Ensign, who played Northacker, also played Benjamin Guggenheim, in James Cameron's Titanic. Northacker is killed (he's the Lieutenant who's in communication with Pitt, "Control, this is Starfish") in the implosion of the Starfish.
Sander Vanocur, who reports the discovery of the Titanic was, at the time, an actual news commentator for CBS. He is now seen in the series "History vs. Hollywood" on The History Channel.
The RTT model was used in a 1991 European 6 hour TV mini series about Titanic's second sister H.M.H.S Britannic. The series was called Gluhender Himmel.
During 1980, RTT was the most popular movie to be shown during flights for airline passengers.
In June 1980, the British TV company ITV paid £500,000 for the rights to show the movie on television.
Lord Grade had told his brother Bernard Belfont NOT to continue with HIS Titanic 1979 TV movie S.O.S TITANIC because of a clash between the two films. S.O.S TITANIC became a flop when it hit the screens.
The survivor's Titanic museum in the Cornwall pub was made by cutting up an issue of the THS's journal Titanic Commutator. THS had started inserting color prints and the orange picture of the ship that stood out so well was in that same issue on newspaper coverage of the disaster. The model was the Entex hobby kit that THS supplied the plans and photos for.
In the opening sequence as they're showing pictures of the Titanic back in 1912, they show a band with a man playing the cornet. That band was never on the Titanic but is in fact the 1919 photo of the "Original Dixieland One Step Band."
The last photo in the opening sequence shows couples dancing. This pictures was never taken on the Titanic. The photo looks like it was taken in the roaring twenties.
At the beginning of the novel, Dr. Cussler has Sid Koplin on the island of Novaya Zemlya, an island that does exist. But if you watch the movie, they have Koplin on the island of Svlardlov (I think I spelled that right). An island, that I couldn't find in the atlas, that probably does not exist.
In the novel, Dr. Cussler had the first funnel break off during the sinking which is historically correct. In the film, it is the second funnel which was not historically correct. The reason why the second funnel was broken off instead of the first one was because the producers of the film thought it would be more dramatic and that many people wouldn't even notice anything wrong if the first stack was missing.
John Bigalow is mentioned both in the novel and in the film as a junior officer (In the film he is a Junior Third Class Officer). Historically, there were never any junior officers of any kind on board the Titanic.
David Short Adds: This is not strictly correct. The Bridge officers were Chief, 1st, 2nd, 3rd (senior) and 4th, 5th and 6th (junior). However, there was no officer of the name of John Bigalow as already stated.
The RTT model has a small ariel sticking from the top of the (2nd class entrance) structure at the back of the 4th funnel. This must be used for FX crew when filming the model.
Unbeknownst to the writer of the novel and movie producers, the Titanic was not intact and lies in two sections on the ocean floor. Therefore, it would have been impossible to raise her as they did in the movie and in the book!
Contributed by: Alan Johnson
When the costs of the film were escalating, Lew Grade allegedly said that it would be cheaper to lower the Atlantic.