Continuity mistake: In a shot of the ship's bow heading toward land, "Seabourn Legend" has been incorrectly spelt as "Seabojn Legend".
Other mistake: At the end when the plane hits the tanker, people shout "abandon ship" and next shot, a lifeboat full of people is halfway down the side of the ship. This would be impossible. (01:48:00)
Revealing mistake: When we see Annie looking back at Seaborn Legend just after it hit the Heindhoven Lion, the Seaborn Legend looks like it is superimposed onto the water. (01:30:30)
Continuity mistake: After being underwater to deal with the bow thrusters, Alex and Dante go up to the bridge. When they get there both of their shirts are almost completely dry, despite being fully submerged in water only minutes before. (01:32:40)
Continuity mistake: Once the two huge ships have collided, they go off in opposite directions. Just as they notice that they are going into town, the one boat is at a completely different angle. (01:31:10)
Revealing mistake: When Alex and Dante are heading for the bow thrusters, there is one shot of the Seabourne Legend cutting through the water. In one shot you can see the wake from the filming boat before where the Seabourne Legend has been. (01:27:00)
Continuity mistake: When Annie is being taken hostage at the end, Alex jumps down onto the stern door but misses and lands in the water. He is then shown hanging onto the stern door's edge. Since the edge is about 10 feet over the water's surface, he must be a pretty good athlete to jump and grab hold of it. (01:23:10)
Other mistake: Throughout the entire film, Alex manages to keep the engagement ring in his pocket after everything that happened. (01:51:50)
Suggested correction: People manage to keep things in their pockets all the time after enduring a lot of different activities. This is in no way a mistake whatsoever.
Factual error: At this time, there was no way that you could take full control of a ship's engine, navigation, fire fighting systems etc. remotely.
Factual error: The "Seabourn Legend" makes 19 knots at full sea speed. After Geiger fails one of the engines she still makes 18 knots while headed for the "Eindhoven Lion." With only one screw active and one engine out of order, that wouldn't be possible.
Visible crew/equipment: When the Seaborn Legend is just starting to hit the decking, there is one shot from on the deck of the boat moving towards the camera with a cannon in front of the boat. Look by the end of the cannon and you can see the camera that is attached to the boat. (01:37:00)
Revealing mistake: In the scene where the motorboat hits the ramp and lands in a store, you can see while it's in the air that the propeller isn't turning.
Revealing mistake: In the very beginning of the film, when Alex rides his motorcycle to catch the bad guy, when he flies through the air you can his stunt double who has blonde curly hair. And when the camera goes to a close-up to Alex, you can see his hair is black.
Continuity mistake: On the bridge the speed is shown going down fairly fast. The camera shows it going down from 17.8kts to 17.3kts. Geiger is then made aware of the deceleration and opens up his PC. The speed is still decreasing but is only at 17.1kts when he first looks. The speed is still going down at the same rate so should be well past 17.1kts on Geiger's screen. (01:18:00)
Factual error: The boat used by Bullock and Defoe to get off the cruise ship is water jet powered. The boat is shown launching from a dry dock and into the water using its engine. This is impossible. The only way for a water jet powered boat to accelerate is to be in the water.
Continuity mistake: Alex is telling Annie to get on a lifeboat and is getting soaked. A minute later, when he enters the bridge, his suit is completely dry. (00:42:00)
Continuity mistake: When Alex rescues Drew, it is the middle of the night. There are a few consecutive events, then it is instantly daylight. But the events are all consecutive. There is no way the sun could rise that fast.
Continuity mistake: When Alex realises Drew is in the ballast tanks by looking at the monitor, he says "f**k" before anyone can be seen on the screen. (00:59:20)
Suggested correction: I think your film may have been out of sync slightly as this doesn't happen on my copy?
Other mistake: While the ship rips through the town, many buildings seems to get smashed. But in the shot from above not all the damaged buildings are visible. (01:41:10 - 01:45:00)
Other mistake: In more than one scene, Alex is normally talking to Drew although she's deaf. She wasn't looking at him while he was talking, so she couldn't have read his lips.
