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 Rose breaks Jack's handcuffs, you can see the stunt person not wearing suspenders as Jack does. This is an inter cut shot between the raising of the axe and the striking of the cuffs. Leonardo's stunt double is noticeable in other shots throughout the film. (02:01:00)
Continuity mistake: Just as Jack begins to draw naked Rose, he draws a dark line down the center of his paper. In the next shot of the page the line is suddenly much fainter (over to the right) and he is now drawing her face. (01:23:15)
Continuity mistake: When Rose is trying to rescue Jack she spies a fire axe. Smashing all the glass out from the holder she grabs the axe and turns round. The next camera shot shows Rose standing in front of the case with almost all of its glass intact. (01:59:25)
Continuity mistake: When Jack is persuading Rose not to jump, Jack's shirt collar changes position several times, revealing his white t-shirt from a little to a lot. (00:39:05)
Continuity mistake: Look closely at the location of Rose's beauty-mark the first time you see her at the dock. It is on the opposite side of her face during the rest of the movie. (00:21:30)
Continuity mistake: After being shot at by Cal, Rose and Jack race down the hallways outrunning the rising water. Rose is wearing white sneakers, yet she is seen two minutes later wearing period shoes when Jack retrieves the gate key that the crewman dropped beneath the rising water. (02:17:05 - 02:18:50)
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: When Jack and Fabrizio are at the bow, the anchor well below them is black. Along with that, the foremost railing is not connected with the rest. But when Rose and Jack are there the well is white and the railing connects. Plus during the "flying" sequence the gap between the vertical bits of the railing is different in different shots of the ship. (00:30:40 - 01:17:35)
Continuity mistake: When the ship is about to leave the dock, there's a lot of people saying goodbye to the ones that are going to leave the city. In the following shots, you can see Jack and his friends playing cards inside the pub. If you look through the window you won't see anyone. In the next shot, when Jack leaves the pub, the crowd is there again. (00:23:15 - 00:25:05)
Continuity mistake: When Rose and Jack run through the dining room with Cal shooting them, notice that the floor is tilted to reflect the ship sinking. In the next scene when they run down the stairs, the floor is now perfectly level. There is no tilt to the floor. Notice how the water tumbles out of the door - it falls on a flat surface and disperses evenly with no angle to it. (02:16:05)
Continuity mistake: Right before dinner, Jack and Rose are talking to the Astors, and Molly comes up from behind them, asking Jack to escort her to dinner as well. In the next shot, when Cal calls back to Rose, Molly is still walking up to them. (00:58:15)
Continuity mistake: Early into Rose's suicide attempt scene Jack's hair tucks itself behind his ears while his hands are in his pockets. (00:37:55)
Continuity mistake: The design of the ship's bow changes significantly while at sea. The white form on top of the bow used for mooring first does, then doesn't have an indentation on top, possibly with a bolt in the center. The point where the curved railing meets the straight side railings either is or is not connected by a top horizontal bar, and the gap between the vertical posts changes size. Another mistake on this site mentions the anchor design change, but also the metal walkway is made of tubular metal bars -or- flat bars that are more numerous and closer together. (00:30:15 - 01:21:00)
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: The pipe on the starboard side of the forward smokestack changes by the time the ship sinks. When Captain Smith tells Murdoch to speed up the ship it bends at the top and creates a half circle. When it is collapsing behind Cal, it has the shape of a "P." (00:28:20 - 02:28:00)
Continuity mistake: When Rose is being lowered into the lifeboat, she looks up at the ropes, and then the camera alternates between her and Jack/Cal four times. The shots are only a few seconds apart. In the first shot, Cal's hands don't extend past the rail and Jack's are clasped resting on the rail. In the second shot, Cal's hands now extend over the rail and Jack's are completely gone. (The third shot doesn't show the rail.) In the fourth shot, Cal's hands again don't extend over the rail and Jack's are holding the rail. Jack and Cal are calm throughout, so would likely not have been moving their hands about. (02:12:40)
Continuity mistake: During a scene where the ship is sinking, Jack and Rose are seen in front of a roaring fire. The coal or logs on this fire do not roll off despite the acute angle of the ship. A clock, glass and ornaments on the mantlepiece above the fire do not slide off and if you look closely at the half filled wine glass on the mantle, the wine is completely level despite the room tilting further and further. (02:25:35)
Continuity mistake: When Rose and Jack are running down the corridor after the water breaks down the doors and comes rushing in, Rose has on flat shoes instead of heels. This was probably done for safety reasons. (00:34:30)
Continuity mistake: Rose is wearing low heeled laced shoes throughout the entirety of the sinking scenes. Jack helps her jump off a small deck in order to flee for the lifeboats (she's wearing her lifejacket at this point). In this scene, Rose is suddenly wearing flat moccasin-type shoes of similar bone colour. Shoes then revert back to low heeled lace-ups after small jump assisted by Jack takes place. (02:28:30)
