I don't usually like to watch films like this, as I don't like the nervous, uneasy feeling I experience while watching them. However, I wanted to give this a chance.
A New Year's celebration on a luxury cruiser Poseidon is underway, leading us through brief introductions of our future cast (some of the most delightful being an aging gay-man Richard Nelson and an ex-navy Dylan Johns), when a rogue wave appears quite suddenly (no time wasted there) and makes the cruiser do half an Eskimo Roll.
Up is down, and the remaining survivors hope that their ship stays afloat until rescuers arrives. Not everyone is that optimistic, however, and the previously introduced characters start an uncertain climb for possible survival.
Through cramped spaces and crystal clear waters - with some fiery inferno to boot - the group thins and obstacle after another arises to dampen their spirits. I think the cast's performances were good, and none of the issues they had to deal with were too unbelievable. That, of course, makes the situations only worse to watch.
In the spirit of all similar movies before this, and probably after as well, some of the characters make it while others don't. You could make some guesses as to who might not make it, which is part of the "entertaining" factor of the story. Also, I have no idea what drowning really looks like, but we had at least one very good version of it in here.
All in all, a good disaster story, I guess. It didn't seem too impossible or too long, and this will probably make you eye to horizon for a bit longer the next time you dare to put your foot in a boat of any size.