feel free to marvel at the remarkably good special effects and cgi. that'll entrance you for the first 45 minutes or so.
then make sure you've got a good book to read for the next couple of hours while you wait for it all to come to a stop.
not really sure what happened. i'm aware there was a submarine at some point, and cate blanchett's face was reasonably well pasted onto that of a talented ballet dancer. apart from that i was thinking about vice versa starring judge reinhold.