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)
Factual error: At the end of the movie, the Straus' are seen lying in each other's arms on their bed with water coming into the cabin under the closed door as the ship is sinking. This is not true, their cabin was on C deck, but his body was found in the following days of the sinking. For his body to get into the open water it would have had to float through a closed door, and up several flights of stairs. Historically, they refused to leave the ship, and were last seen sitting in deck chairs. They were there when the ship sank on the boat deck. Her body was never recovered.
Factual error: In the film the water tight doors are shown to lower mechanically all the way down, however in reality the last 20 inches or so they would suddenly drop by their own weight to effectively "dent" into the floor creating the water tight seal. A few of the crew in the film getting through "at the last moment" would have actually had their lower legs shattered by several tonnes of iron.
Revealing mistake: In the scene where Rose lets go of Jack's hand and he sinks to the bottom, if you look closely enough, you can see Jack eyes move under his lids, even though he is supposed to be dead already.
Revealing mistake: When Rose and Jack first enter the boiler room, they run towards the right. If you look closely you can see the reflection of the worker in the back to the left in the mirror they use to make the bolier room look longer. In the next scene they are running in the opposite direction, because the set is so small due to the mirror, and once again you can see the same reflections caused by the mirror.
Factual error: Shortly after Old Rose mentions just leaving the coast of Ireland, a shot of the captain's area (with the steering wheels) is shown with the sun shining in from the right (if facing toward the front of the ship) This would be impossible for a westbound ship in the middle of the day as the sunshine could not enter from the north side of the ship. The rest of the movie has all scenes with the sun correctly coming from the south during mid-day as the ship is travelling westbound.
Factual error: When Rose is trying to rescue Jack, the corridors that she is running through are a bright white colour, the lights appear to have a high colour temperature, and they have a more modern A19 bulb shape, and they might be halogen. In reality they would emit a much dimmer yellowish light. The lightbulbs would also be transparent along with a different bulb shape.
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.
Factual error: When Jack and Rose begin to evacuate to the Titanic's stern, there should be only two lifeboats left on the ship: Collapsible A (which Cal was on) and Collapsible B (the overturned one with all men on it). However, if you pay attention you'll notice two other boats still there. One is still loading and another is in the water but still attached to the falls.
Factual error: It's impossible that Rose would've been able to survive for as long as she did whilst wearing that thin, delicate lounging dress she changed into after Jack drew her portrait. She was in and out of the water constantly before finally climbing on top of the door frame in the water, and while the coat Cal put on her could've kept her torso warm, her legs were exposed throughout much of the ordeal. The human body can barely function in freezing temperatures, but she moves around with considerable agility until shortly before she's rescued from the water.
Factual error: The layout of the hallways in the film does not match the deck plans of the real Titanic.
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.
Other mistake: The ship is down by the bow about 30°. There follow scenes in which people make their way through flooded passageways. The water is chest-high, but level.
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.
Character mistake: At the beginning of the movie, Bill Paxton is pulling out documents out of the safe, maybe destroying some of them. Extremely unprofessional from an archaeological perspective. Although he represents a private company on a Russian ship searching for a diamond, he for sure violates many international laws with this brutal act of recovering objects. A professional treasure hunter should know that, plus a camera is filming him. He risks never getting a licence for a treasure hunt again.
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.
Revealing mistake: When Jack and Rose are talking at the bow of the ship before the "I'm flying" part, if you look at the windows behind them you can tell it is a painted prop area and not a real ship.
Other mistake: After Jack and Rose are "done" in the cargo hold, they come out onto the bow of the ship laughing. Whilst the door they used to get onto the bow does lead to the cargo hold, inside you have to go down a flight of stairs and are greeted by a cast iron hydraulic door which can't be opened from inside the cargo hold, and would close automatically if the control wheel wasn't being held. The only way they would have been able to get out is by running back through the boiler rooms.
Factual error: During the sinking scene, Murdoch looks down the crew stairs on the starboard side, where water is entering from an open door on deck A. That door should have faced outward (starboard side) otherwise the door would have lead into cabin A7 and I don't think the occupant would have enjoyed that.
