They say that the tsunami is moving at 800 miles per hour, which is faster than the speed of sound (768 mph). According to NOAA, tsunamis travel approximately 475 mph in 15,000 feet of water, which is about the average depth of the ocean.
The ships owner would not be calling the shots on the bridge and arguing with the captain. A captain who was in that situation where lives were at stake would have the owner removed from the bridge so that he could do his job unhindered.
After the three characters escape out of the top of the elevator, the two women go first up the ladder, but when they reach an upper floor it is the man - who was below them - who is now leading the way and who opens the doors.
The dock scene is a complete mess. In the long shots the ships is tied to a dock near a city with numerous skyscrapers, while in all the closeups there are no skyscrapers visible. The ship used for filming, the Queen Mary is permanently moored, which is also evident in the closeups with mooring lines and a mole.
When the ship is about to depart there is a large amount of red paint showing on its hull above the water line, showing it is riding fairly high in the water, even though it should be fully loaded. However, when we subsequently see the ship, no red can been seen.
When the captain is taking the first sip of his tea, he lifts the cup to his mouth, the camera angle then changes to show him again raising the cup to his mouth but he wouldn't have time to take one sip, swallow it and set the cup down, to take another.
In the elevator scene, the character 'Hayden Walsh' smashes his head against the emergency case containing a fire Axe, completely smashing the glass out of it, yet 2 minutes later he smashes the glass again with his elbow to get the Axe.
In the final scene, you can clearly see daylight coming from the lifeboat entrance even though it's supposed to be the middle of the night. Then a long shot shows the sun rising while the sky being still dark, which doesn't explain the light inside the lifeboat.
As the passengers looked down to the people on shore while they were leaving the port, you can see shadows of palm trees, but in the next scene it is cruising past the Statue of Liberty in NY where there are no tropical palms.
Tsunami waves, whether caused by a submarine earthquake or a landslide (or in this case an ice-slide) are usually barely, if at all, noticeable by a ship in mid-ocean. They only increase in height when the ocean depth decreases near coastal areas, which also causes them to crash and sweep away everything along their path. It is almost impossible for events such as those depicted in the film to actually happen.
When the propellers stop, the ship itself stops almost immediately. Even if the propellers were put into full reverse, which does not appear to have been done, it would actually take the ship about half a mile to slow and stop.
In the bridge scene, the captain and second officer (the guy with two stripes on his sleeve) each are wearing hats with scrambled eggs on the visors, although such decorations are reserved for senior officers of which he is not.
A modern Titanic 2 would not have the same type of propulsion as the original Titanic did, the modern propulsion would consist of azimuth thrusters and bow thrusters due to modern shipping regulations.
When the Titanic II is on fire, there is a long shot of the ship, showing the length of the ship from a far off distance, yet there is a flame effect going on around the sides of the shot, despite the shot supposedly being a long distance from the ship.
In one scene, the ship is referred to as the USS Titanic II. USS stands for United States Ship and is only used for warships, not commercial passenger liners/cruise ships. The prefix would likely have been MS (Motorship) Titanic II.
During the panic scenes where passengers are being sent down by elevator, an evacuation/location plan is visible on the back wall - the depiction is of a curved building, obviously from a hotel not a ship.
During the panic scenes a passenger runs along the deck from left to right and passes a line of windows, the ship is supposed to be out in the middle of the ocean but the reflection of the shore lights, buildings etc. are clearly visible in the reflection.
In the opening scene,one shot shows a woman getting her picture taken in front of a picture of a ship. But the ship in the picture is not Titanic II, it's the Queen Mary, and the words "Cunard Line" are clearly visible, Yet the Ship is Privately owned by Hayden and not by a Boat Line.
When the passengers escape from the boat and are floating in the water. There are clear reflections on the bottom of the swimming tank used. Obviously this wouldn't be the case considering they are in the middle of the Atlantic.
(at around 1 min) As the initial wave hits the Titanic II, everyone in the dining room is tossed all around with arms flailing, not only do glasses and dishes not move, but the wine inside of the glasses does not move either.