Character mistake: Stallone says he knows they are in the Northern hemisphere because of the way the water goes down the toilet. The Coriolis effect has no impact on water in the toilet.
Factual error: When Ray figures out he is on the ship, he makes it back to his cell, creating a flood along the way, he then swims through a lot of water. When he returns to his water drenched cell and escapes with Victor, his clothes are bone dry. (01:54:30 - 01:55:20)
Suggested correction: I really don't think so. Their clothes are completely soaked, like their hair and skin.
Nope...watching the scene many times in slo-mo, it's clear that Arnie's shirt is soaked, but Sly's is just as obviously dry.
In the first shot when he comes out from the cell he is more than knee-deep in water, with water splashing everywhere, and there are showers of water everywhere when the shot changes: if the shirt were dry you would see stains created by the water spashes and by soaking wet Arnie leaning on him and touching him, since it is impossible for a dry shirt to stay dry through what we see onscreen, let alone the multiple takes most likely they had to do: instead the color of the shirt is uniform. Plus his hair, face, his T-shirt underneath is wet, why would they throw a dry shirt on him on that mess, and how would it stay dry? I think it's simply the light to make them appear different, Arnie is on the darker side of the corridor. However, that's just my observation.