Revealing mistake: In this scene, at the end of the film when Jack and Rose are hanging onto the railing, you can see the ship split in half, but when it drops, if you watch closely on the right side of the screen, you can see that the entire ship is still intact, the lifeboat cranes are visible all the way down the top of the ship. (02:35:10)
Continuity mistake: When the windows are breaking in the grand staircase the first two next to the piano break at the same time. But then a few seconds later the second window is breaking again. Another mistake is that the piano went from the port, to the starboard side suddenly. (02:35:15)
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)
Revealing mistake: When the ship tilts to a vertical position, you see people falling and hitting objects on the deck. In a close up of that, you can see that a black and bronze-topped capstan has wrinkles in it and bends when someone hits it. Fixed in Blu-Ray version. (02:36:40)
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)
Revealing mistake: Just after the Titanic has sunk, and all the people are thrashing around in the water; look towards the top of the screen as the camera pulls back, and you can see the back of the tank it was filmed in. It shows as a clear line against the background. (02:37:40)
Factual error: A point is made in the movie, and it is well known, that the water temperature of the ocean where the Titanic sank is near freezing, and at the end after it sinks, the people in the water only last a few minutes before going into an unconscious stupor and then dying. but on the boat, as it is taking on water while it is sinking, Jack and Rose are running around in this freezing water for what seems about 30 minutes with no apparent ill effects. The water could not have been heated substantially, and they simply could not have lasted nearly as long as they did running around in this water as the movie showed without slipping into unconsciousness. (02:38:30)
Suggested correction: In movie time it is only a few minutes that pass yes, but realistically nobody really knows how long they were in the water before they all started dying. It could have jumped to 30 minutes later when it is quiet. Also, Jack and Rose on the boat were not submerged in water for 30 minutes consecutively, but rather in and our of water and only up to their necks for a few seconds at a time.
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)
Revealing mistake: As the ship is breaking apart, you can see the wires that pull people into the tear on the deck. (02:40:10)
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)
Revealing mistake: In the engine room as the ship is sinking, the smoke and steam coming from the machinery rises at the same angle as the ship, about 45 degrees. So, the shot was filmed level, then tilted afterwards. (02:40:40)
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)
Deliberate mistake: When the lifeboat crew are searching the water for survivors, they are using lanterns. It has been admitted by James Cameron himself that the real Titanic crew didn't have lanterns in the lifeboats, but this was the only way to light the shot. (02:45:55)
Deliberate mistake: When Jack and Rose are adrift in the ocean, the stars behind them are not the right ones for that time and date. In fact, it's not any sky ever seen on Earth. The right half of the sky is a mirror image of the left half. The fimmakers deliberately positioned the stars to form the shape of the pendant 'Heart of the Ocean.' (02:46:00)
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)
