Goofs

The iceberg is shown, correctly, hitting the right (Starboard) side of the ship. But in the underwater shot, we see the iceberg cutting into the Titanic's left (Port) side.

When Gifford Rogers (Robert Wagner) tosses his cap overboard, a long shot of the hat hurtling toward the water shows nothing but ocean and waves. But in closeup upon hitting the water, the cap is surrounded by large chunks of white ice that should have been visible earlier.

Early scenes during the sinking show the engineering areas experiencing severe listing, whilst the lounge where passengers are playing cards has no tilt whatsoever.

Richard Sturges (Clifton Webb) puts his family on lifeboat #6, but much later the last lifeboat lowered has a number 6 affixed to its bow.

When the college crowd is gathered around the piano singing along, the pianist, a young man with a distinctive hair cut, is suddenly replaced in the next shot by an older man with a different haircut.

Trying to buy a ticket at the last minute, Richard Sturges (Clifton Webb) is told that the voyage has been sold out since March. In fact, it wasn't even close to sold out.

None of the First or Second Class Children died in the sinking apart from one young First Class girl, Lorraine Allison, who died with her parents.

The Chairman of the White Star Line in fact sailed on the ship.

Maude Young makes a sarcastic remark to Mr. Meeker in the lifeboat, suggesting that he is a coward. Mr. Meeker is dressed in a woman's overcoat and scarf. It has been a long-established fact that the "men dressed as women" to survive the disaster was a hoax. This was a rumor started by one survivor's business competitor to discredit him.

Crewmembers on the Titanic did not wear Royal Navy uniforms.

As depicted later in Titanic (1997), the ship broke in two whilst still afloat, the stern section first righting itself and then turning on end. However, these facts were not established until after its remains were found in 1985. Eyewitness testimony at the inquiries had been conflicting, and the accepted version in 1953 was that the Titanic had sunk intact.

At the time Titanic hit the iceberg, the air temperature was around 33 degrees Fahrenheit. When the passengers and crew are on the deck, there is no sign of breath vapor coming out of their mouths.

In the underwater shot of the iceberg slicing into the ship, the bottom and left side of the studio water tank is plainly visible.

When the main staircase is shown at an angle near the end, the people are also leaning, rather than standing upright as they should.

When the lifeboats are being lowered, the portholes are shown as perfectly level, indicating the ship is not at an angle, which it was.

Throughout the sinking, the list increases and decreases between shots instead of methodically increasing. A port-starboard list is also often shown, when, through flooding at the front, the only noticeable tilt would have been bow-stern.

Richard Sturges (Clifton Webb) gets a new wardrobe once he is aboard the Titanic. One of his new items is an overcoat, which is in the style of a trench coat. However, trench coats (so named for their use by soldiers in the trenches of World War I) only became fashionable as soldiers returned after the end of the First World War (1918). As the Titanic sank in 1912, this coat was out of place for its passengers.

Sailors are shown lowering a Carley Float as a lifeboat.

The character of Sandy Comstock (James Todd) has lost all his money gambling in Europe- to the point of having to borrow someone else's pants, but somehow is able to afford the first class fare on Titanic.

Near the beginning, when one of the crew is reading the names of various actual passengers who were aboard the Titanic, he calls out the name "Mr. Archibald Butts". The man's correct name was Archibald Butt (with no "s"), secretary to U.S. President Taft.

At the start of the film while waiting at Cherbourg, Mrs Astor says that shes not the first woman to have a baby, Mr Astor replies "to me, you are" implying its his first child as its her. John Jacob Astor already had a 21 year old son and a 10 year old daughter when he died on the Titanic.