Corrected entry: At the end of the movie, you can see one of the workers from the boiler rooms in steerage just as Cal comes looking for the little girl, but in history books, no one from the boiler rooms survived.
Corrected entry: When the ship finally submerges and Jack and Rose are pulled down by such terrific suction wouldn't it follow that Rose's shoes would come off? Suction strong enough to pull a person underwater would definitely pull off a flimsy pair of shoes. Yet when she is laying on the door, there they are.
Corrected entry: On the morning before Titanic sank (Sunday) Jack tries to go to the first class dining room to see Rose (I think it was the dining room). In real life, EVERYONE was allowed to go to the service, not just first class, though there were services in all the classes, but everyone was invited to attend.
Corrected entry: Though James Cameron was very thorough on researching the ship, he missed one crucial thing: the lifts in first class only went down to D-deck; he shows them going down to E-deck.
Corrected entry: When Cal finds the drawing of Rose, he is angry and scrunches it up. It doesn't make sense that he or somebody else would then smooth out the wrinkles and carefully put it back in the folder and into the safe, where it would be found years later. I also find it hard to believe that it would have stayed in such good condition after 80 odd years in the water.
Corrected entry: When the seamen in the "rescue" lifeboat are shouting for survivors, there is a distinct echo of his call. What does the echo come off? There are no reflective surfaces on a flat ocean.
Corrected entry: When the ship is in a vertical position, Jack and Rose are on the other side of the metal bars at the end of the ship. You can see someone's hand grabbing the metal bar just before the scene changes. That is impossible because as shown there is nothing below the bars where the man could have stood.
Corrected entry: As the boat is flooding and Jack and Rose are almost completely submerged in water, sometimes you can see that Rose's dress is cut knee-length to help her move more efficiently in water. One prime example of this is when Jack plunges underwater to get the keys to the gate in front of them.
Corrected entry: They show one of the guards, Will, shooting himself in the head after he shoots the Irishman. However this man did not actually shoot himself and his family took a lawsuit against the film makers for portraying him as gutless. The rumour that he had shot himself as well as a passenger surfaced not long after the ship sank. The family of the officer received messages from crew members who survived assuring them that he died like a hero and he did not shoot any passengers or himself.
Corrected entry: Leo freezes and sinks into the ocean from the door. This wouldn't happen. Partially or even totally frozen human bodies float in water. Even fully-clothed frozen bodies have been shown to float.
Corrected entry: All four funnels have smoke coming out of them in the film, but apparently the fourth one was actually fake, so it shouldn't have smoked.