As a retired commercial diver, this was hard to watch. While I don't expect them to get every detail right, they almost didn't get any details right. Its awful. I could list hundreds of things. First up on the descent, it takes hours and hours (about 4 from memory) to get to 660 feet, not an hour. His shampoo explodes because he does not take of the top during decent, and while you would do that, it would actually implode on the way down. Just saying. No such thing as a big bell and certainly not with two rooms to it! Helium costs big money, so they make bells as small as the can. Never seen a 4 man bell myself, but even so, it would be as small as a 3 man bell. They did bother to do ''bell checks'' on which the survival suits are listed (which they find missing when they need them) . Sever the umbilical to the ship, you lose hot water, which they try to reflect in the diving with the divers being very cold, but forget to tell the viewer why the divers are cold. Lose hot water, and you have no heater, as that is how they work! They use the sound powered phone for most things, when you have direct comms to the bell over the speaker/microphone and no bell I have ever been in, could possibly have comms to reach a ship. In fact it is one of our biggest problems. You come up with perfect comms from diver to topside, bell to topside, bell to diver and diver to diver and you would be an over night multi millionaire. So far I have not really had to much in the way of a spoiler, but I am about to now , so if that is a problem, read no further....... *spoiler alert*
When they try to float the bell, there is a step by step you must take and one of those steps is to use the umbilical cutter. Its a manual hydraulic cutter operated from inside the bell. If you don't cut that, you likely wont get far. So these people didn't bother, get caught up and have to basically free swim the rest of the way. So from memory they go from 660 feet to 250 feet or less them open the door (you need to equalize pressure first) them out and up. Arh, NO! You would never make the surface alive and I do not know how you would even be dropping that pressure to 250 feet. I mean that is going to hurt bad and kill you also, but might take some time. But either way, you are not going to be alive when you hit the surface. Very lazy film making, very lazy indeed
When they try to float the bell, there is a step by step you must take and one of those steps is to use the umbilical cutter. Its a manual hydraulic cutter operated from inside the bell. If you don't cut that, you likely wont get far. So these people didn't bother, get caught up and have to basically free swim the rest of the way. So from memory they go from 660 feet to 250 feet or less them open the door (you need to equalize pressure first) them out and up. Arh, NO! You would never make the surface alive and I do not know how you would even be dropping that pressure to 250 feet. I mean that is going to hurt bad and kill you also, but might take some time. But either way, you are not going to be alive when you hit the surface. Very lazy film making, very lazy indeed