A pretty decent Norwegian film about a catastrophe at sea as the title suggests. Actually, it's a few catastrophes with the three primary characters in near constant peril almost to the point of it getting a bit melodramatic now and then. Nevertheless, some of it is is very tense, none of it is boring and it is very well shot. It's hard to judge the acting as I was only able to see a dubbed version. I've seen much worse dubbing, so it's not too distracting. One of the more interesting things seen here is a very sci-fi looking underwater robotic device that is real. We've become so used to CGI being able to create anything, it's an amazing thing to watch in action after learning that.