Factual error: No ship has ever been - or ever will be built without having emergency fuel shutoff devices that can be manually operated.

Continuity: At the end, the angle of the ship is differant between the interior and the exterior shots.

Factual error: You cannot walk into a ballast tank from the accommodation areas. The tanks are not painted white on the inside, and electric lights are not installed in ballasttanks. And finally, when filling ballasttanks, it is done through a pipe and a pump, not by opening gigantic doors in the ship's hull.

Continuity: You have to look really close, but while they are dancing, when the alarms go off, Sandra Bullock is wearing hose. Later, when they are running around the ship, she has taken them off. Then towards the end, wear she is under water, with her hands tied together, she is wearing pantyhose again.

Factual error: Part way through the film the "ballast doors" are opened to scuttle the ship. Unfortunately such convenient rapid sinking devices are only found in Hollywood - no real ship has them.

Continuity: Throughout the movie, the cameras show a wide shot of the cruise liner from the sky, the evening before all the commotion look for the name of the ship, it is painted over, but the next morning, the name is perfectly readable.