Continuity mistake: When the ships sinks and the back is rising, you see no people swim under the ship. When the ship breaks and falls down, the sea is crowded with people, who get crushed under the ship. (02:35:15)
Continuity mistake: Right after the 1st smokestack has fallen and crushed Fabrizio, it is seen from above creating huge sprays of water. The problem is that the smokestack looks nothing like the Titanic's. You can see the top and there is no black whatsoever. And to make it stranger, there is a cable attached to it and then one below it, both on the peach/orange color, and not the black. (02:36:10)
Continuity mistake: When the stern is vertically up in the air a lot of people are holding on to the railing. We see them falling down one by one. When the camera changes to a wide angle it looks as if all are gone except Rose and Jack who are lying on top, but when the camera cuts closer there are again four people hanging. (02:36:35)
Continuity mistake: In the scene where Jack and Rose enter the water, Rose is barefoot, yet later she is wearing pale shoes: the heels are visible later when Rose is on the floating door. (02:36:50)
Continuity mistake: In the water, Jack and Rose climb on a floating piece of wood when a man in the background blows a whistle. First this man has a strand of hair over the forehead, a frame later it's combed backwards, then half a second later the strand of hair reappears. (02:39:35)
Continuity mistake: Just as Titanic breaks apart, the compass platform (seen in front of the third funnel when the lights were still on) suddenly disappears. The water isn't even high enough to have reached its aft-most legs. The white projection on the deck that held the chandelier in the lounge is also gone, and the ventilator that sits on it is flush with the deck. (02:40:30 - 02:41:40)
Continuity mistake: The first chimney fell in the scene where Fabrizio died, but later when showing the Titanic sinking, the uppermost part of the chimney is visible, intact. (02:40:30 - 02:41:15)
Continuity mistake: Right after the lights go out there is a structure directly aft of where the ship will break that on both sides of an angled roof have four panels, each with four portholes (a skylight). After the ship has broken apart and the smokestacks are falling off, it is now open. (02:40:55 - 02:41:50)
Continuity mistake: When Jack and Rose are going down with the ship, there is a man holding onto the flagpole. The man's life jacket disappears and reappears. (02:42:42)
Continuity mistake: When one boat drives back to search for survivors, you can see the lightspot of one lamp turn around faster than the man who hold this lamp, so you know that the lightspot is not from the lamp of this man, but from a studio lamp. The man sees that himself and turns around very quickly to hold the speed of the spotlight. (02:45:45)
Continuity mistake: When Rose is lying on the piece of board and she is trying to wake Jack by shaking his hands and such, there is some frozen stuff under Jacks nose. The scene cuts back to Rose and when we go back to Jack the ice isn't there. Then the scene cuts back to Rose and the next time we see Jack he has it on his face again. (02:48:35)
Continuity mistake: When the lifeboat is passing and Rose is trying to wake Jack, Rose's hair shifts from shot to shot. In some, there is some hair hanging in front of her face, but from the side that strand disappears. It once again reappears as she shifts before rolling into the water. (02:50:00)
Continuity mistake: When it goes from young Rose blowing a whistle to the rescuers to elderly Rose's eyes, you see her eyelashes are short and light coloured. Then at the end when we pass sleeping Rose we see her eyelashes are long. (02:57:57)
Continuity mistake: When Jack is giving their tickets to the ship's crew before boarding the Titanic with Fabrizio, the crew took the tickets, but in the next shot, the tickets are in Jack's hand again.
Continuity mistake: When Lovejoy and Jack are talking, Jack tucks his cigarette in his ear in an 11 o'clock position. A shot later it's in a 9 o'clock position and a bit of hair is covering his ear.
Continuity mistake: When Jack and Rose are in the lower hallway after escaping from Cal, Titanic is already at a major tilt with the bow completely underwater and the first class dining saloon getting flooded. The problem is that the water in the hallway is completely level and the water that floods is also level. With the ship tilted the way it is the water should have been collecting at the end of one of the hallways, not flat.
Continuity mistake: The drawing of Rose by Jack which Cal finds in the safe changes when the divers later find it in the wreck.
Suggested correction: Actually it does not. Comparing side by side the pictures they are identical. The actual picture seen (drawn by James Cameron) was sold at auction in 2011.
Continuity mistake: When Jack looks through the porthole (which is full submerged underwater) while cuffed, he looks over his left shoulder which is facing the hull of the ship. He then turns his head which cuts to him inside the room, his left shoulder is now facing away from the hull of the ship, towards the door. The shot of him looking through the porthole is possibly a reversed shot.
Continuity mistake: When Jack is manacled in the master at arms' cabin as it floods, the drawers from the left-hand side of the desk behind him are floating around in the water, then for a short shot are back in the desk and then floating around in the water again.
Continuity mistake: When Rose is hanging off the back of ship she first isn't holding the train of her gown then suddenly she is.
