Continuity mistake: When Jack is dining in first class with Cal Rose and the others, when the men get up to leave, and in one shot you see Cal walk past Jack, and in the following shot he is walking past again. (01:02:15)
Continuity mistake: When Jack is showing Rose how to spit and is interrupted by the arrival of her mother, the glob of spit on his face moves from the side to the middle. (00:35:45)
Continuity mistake: When Jack gets invited for dinner after Rose's rescue his hair changes between hanging down and tucked behind his ear alternatingly. There is another change after he puts Lovejoy's cigarette behind his ear. Similar alternating changes happen while he talks to Rose in the gym. (00:43:15 - 01:14:55)
Continuity mistake: When Rose and Jack beg a steward to open the gate for them while the water is rising, the steward drops the keys and runs away. There are two shots of the keys on the chain lying in the water arranged in totally different ways (the difference is not caused by the water flow as the keys are not moving in either shot). (02:18:55)
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: When cuffed Jack is screaming for help, you can see the water level in the porthole in the background although the room in which he is cuffed, has already been shown to be completely under water. (01:53:40)
Continuity mistake: At the very beginning of the film when Brock is talking with the big guy, they walk up stairs turn to the right, and right in front of them is a large piece of the ship with a no smoking sign on it, yet in the following shot, the large piece has turned into a very small piece, not even enough room for the sticker. (00:13:35)
Continuity mistake: Inside the car, Jack asks Rose "Nervous?" and she turns her seriousness into a big smile. Just a frame later, from the opposite angle, she is still very serious. (01:30:10)
Continuity mistake: When Jack and Rose have first met and are talking and walking on the promenade of the ship, in a wide shot of them, to the left of the screen stands a man with a hat in his hand talking to a lady. In the following shot his hat is on his head. (00:45:50)
Continuity mistake: When Jack is cuffed and has just looked out of the window, we have just seen his window is about 10 feet underwater, but when we see him banging his handcuffs, we can see the top of the waterline in the window. (01:52:40)
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 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: Before winning the poker game, right when we meet Jack, his cigarette swaps from worn out and dirty to perfect and spotless. (00:23:10)
Continuity mistake: After the sex scene between Rose and Jack, Rose's hair is wet with sweat. When the two of them appear on deck, her hair is exactly as it was before the sex scene. (01:30:40)
Continuity mistake: When Will kills Tommy and commits suicide, the number of dollar bills on the floor next to Tommy's foot change number and position between shots. (02:19:40)
Continuity mistake: When Cal is trying to kill Rose and Jack, then suddenly realises his diamond is in the coat, his fringe swaps from messy to perfect from frame to frame. (02:13:50)
Continuity mistake: When the engine room gets the order to cut power to the engines, the wheel that one of the engineers is turning is black, however a few minutes later the wheel is gold. (01:35:00)
Continuity mistake: When Rose runs to commit suicide, the people she bumps into disappear in the immediate aerial angle. (00:35:10)
Continuity mistake: After Rose refuses to get in the lifeboats there's a shot of handcuffed Jack crying for help. A frame later his fringe has swapped from combed to parted. (01:52:40)
Continuity mistake: When Rose finds Jack handcuffed, the papers by the corner of the table next to him swap from being white coloured to yellow, plus being on the very edge or not, depending on which angle is shown. (01:55:40)
